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Publication: Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79.

ITIS records citing this publication
 
 Kingdom Animalia
  Accipiter Brisson, 1760 -- valid -- Bird Hawks
  Accipiter cooperii (Bonaparte, 1828) -- valid -- Cooper's Hawk, epervier de Cooper, Épervier de Cooper, Gavilán de Cooper
  Accipiter gentilis (Linnaeus, 1758) -- valid -- Autour des palombes, Gavilán azor, Northern Goshawk
  Accipiter gularis (Temminck & Schlegel, 1844) -- valid -- Asiatic Sparrowhawk, Japanese Sparrowhawk
  Accipiter striatus Vieillot, 1808 -- valid -- epervier brun, Épervier brun, Gavilán pecho rufo, Sharp-shinned Hawk
  Accipitridae Vigors, 1824 -- valid -- aigles, buses, Eagles, éperviers, Hawks, Kites
  Acridotheres Vieillot, 1816 -- valid
  Acridotheres cristatellus (Linnaeus, 1758) -- valid -- Crested Myna
  Acrocephalus J. A. Naumann & J. F. Naumann, 1811 -- valid -- Reed-Warblers
  Acrocephalus familiaris (Rothschild, 1892) -- valid -- Millerbird
  Acrocephalus luscinia (Quoy & Gaimard, 1830) -- invalid -- Nightingale Reed-Warbler
  Actitis Illiger, 1811 -- valid -- Spotted Sandpipers
  Actitis hypoleucos (Linnaeus, 1758) -- valid -- Chevalier guignette, Common Sandpiper
  Actitis macularia (Linnaeus, 1766) -- invalid -- chevalier grivelé, Playero alzacolita, Spotted Sandpiper
  Aegithalidae -- valid -- Bushtits
  Aegolius Kaup, 1829 -- valid -- Saw-whet Owls
  Aegolius acadicus (Gmelin, 1788) -- valid -- Northern Saw-whet Owl, petite nyctale, Tecolote afilador
  Aegolius funereus (Linnaeus, 1758) -- valid -- Boreal Owl, nyctale de Tengmalm
  Aerodramus Oberholser, 1906 -- valid -- Edible-nest Swiftlets
  Aerodramus spodiopygius (Peale, 1848) -- valid -- White-rumped Swiftlet
  Aerodramus vanikorensis (Quoy & Gaimard, 1830) -- valid -- Gray Swiftlet, Uniform Swiftlet
  Aeronautes Hartert, 1892 -- valid -- White-throated Swifts
  Aeronautes saxatalis (Woodhouse, 1853) -- valid -- Vencejo pecho blanco, White-throated Swift
  Aethia Merrem, 1788 -- valid -- Least Auklets
  Aethia cristatella (Pallas, 1769) -- valid -- Alcuela crestada, Crested Auklet, Starique cristatelle
  Aethia pusilla (Pallas, 1811) -- valid -- Least Auklet, Starique minuscule
  Aethia pygmaea (Gmelin, 1789) -- valid -- Starique pygmée, Whiskered Auklet
  Agelaius Vieillot, 1816 -- valid -- Red-winged Blackbirds
  Agelaius humeralis (Vigors, 1827) -- valid -- Tawny-shouldered Blackbird
  Agelaius phoeniceus (Linnaeus, 1766) -- valid -- carouge à épaulettes, Red-winged Blackbird, Tordo sargento
  Agelaius tricolor (Audubon, 1837) -- valid -- Tordo tricolor, Tricolored Blackbird
  Agelaius xanthomus (P. L. Sclater, 1862) -- valid -- Yellow-shouldered Blackbird
  Agkistrodon Palisot de Beauvois, 1799 -- valid -- Copperheads, Cottonmouths
  Agkistrodon contortrix (Linnaeus, 1766) -- valid -- Cantil cobrizo, Copperhead, Northern Copperhead
  Agkistrodon piscivorus (Lacépède, 1789) -- valid -- Cottonmouth
  Aimophila Swainson, 1837 -- valid -- Aimophila Sparrows
  Aimophila aestivalis (M. H. K. Lichtenstein, 1823) -- invalid -- Bachman's Sparrow
  Aimophila botterii (P. L. Sclater, 1858) -- invalid -- Botteri's Sparrow, Zacatonero de Botteri
  Aimophila carpalis (Coues, 1873) -- invalid -- Rufous-winged Sparrow, Zacatonero ala rufa
  Aimophila cassinii (Woodhouse, 1852) -- invalid -- Cassin's Sparrow, Zacatonero de Cassin
  Aimophila ruficeps (Cassin, 1852) -- valid -- Rufous-crowned Sparrow, Zacatonero corona rufa
  Aix F. Boie, 1828 -- valid -- Wood Ducks
  Aix sponsa (Linnaeus, 1758) -- valid -- canard branchu, Pato arcoiris, Wood Duck
  Ajaia Reichenbach, 1853 -- invalid -- American Spoonbills
  Ajaia ajaja (Linnaeus, 1758) -- invalid -- Espátula rosada, Roseate Spoonbill
  Alauda Linnaeus, 1758 -- valid -- Skylarks
  Alauda arvensis Linnaeus, 1758 -- valid -- Eurasian Skylark, Sky Lark
  Alaudidae Vigors, 1825 -- valid -- Larks
  Alca Linnaeus, 1758 -- valid -- Razorbills
  Alca torda Linnaeus, 1758 -- valid -- Petit Pingouin, Razorbill
  Alcedinidae -- valid -- Kingfishers
  Alces Gray, 1821 -- valid -- moose, Old World elk
  Alces alces (Linnaeus, 1758) -- valid -- Eurasian Elk, moose, orignal
  Alectoris Kaup, 1829 -- valid -- Chukars
  Alectoris chukar (J. E. Gray, 1830) -- valid -- Chukar, Chukar Partridge, Perdiz chukar
  Alle Link, 1806 -- valid -- Dovekies
  Alle alle (Linnaeus, 1758) -- valid -- Dovekie, Little Auk, mergule main, Mergule nain
  Alligator Cuvier, 1807 -- valid -- Alligators
  Alligatoridae -- valid -- Alligators, Caimans
  Alopex Kaup, 1829 -- invalid -- Arctic foxes
  Alopex lagopus (Linnaeus, 1758) -- invalid -- Arctic Fox, renard arctique
  Alsophis Fitzinger, 1843 -- valid -- West Indian Racers
  Alsophis portoricensis Reinhardt and Lütken, 1863 -- valid -- Puerto Rican Racer
  Alsophis sancticrucis Cope, 1863 -- valid -- St Croix Racer, St. Croix Racer
  Amandava Blyth, 1836 -- valid -- Avadavats
  Amandava amandava (Linnaeus, 1758) -- valid -- Red Avadavat
  Amazilia Lesson, 1843 -- valid -- Amazilias
  Amazilia beryllina (Deppe, 1830) -- valid -- Berylline Hummingbird, Colibrí berilo
  Amazilia tzacatl (De la Llave, 1833) -- valid -- Colibrí cola rojiza, Rufous-tailed Hummingbird
  Amazilia violiceps (Gould, 1859) -- valid -- Colibrí corona violeta, Violet-crowned Hummingbird
  Amazilia yucatanensis (Cabot, 1845) -- valid -- Buff-bellied Hummingbird, Colibrí yucateco
  Amazona Lesson, 1830 -- valid -- Amazon Parrots
  Amazona ventralis (Statius Muller, 1776) -- valid -- Hispaniolan Amazon, Hispaniolan Parrot
  Amazona viridigenalis (Cassin, 1853) -- valid -- Loro tamaulipeco, Red-crowned Amazon, Red-crowned Parrot
  Amazona vittata (Boddaert, 1783) -- valid -- Puerto Rican Amazon, Puerto Rican Parrot
  Ambystoma californiense Gray, 1853 -- valid -- California Tiger Salamander
  Ambystoma cingulatum Cope, 1868 -- valid -- Flatwoods Salamander, Frosted Flatwoods Salamander
  Ambystoma jeffersonianum (Green, 1827) -- valid -- Jefferson Salamander
  Ambystoma nothagenes Kraus, 1985 -- invalid -- Kelley's Island Salamander
  Ambystoma platineum Cope, 1868 -- invalid -- Silvery Salamander
  Ambystoma tremblayi Comeau, 1943 -- invalid -- Tremblay's Salamander
  Ameiva Meyer, 1795 -- valid -- Ameivas, Ground Lizards
  Ameiva ameiva (Linnaeus, 1758) -- valid -- Giant Ameiva, South American Ground Lizard, Zandolie
  Ameiva exsul Cope, 1863 -- valid -- Puerto Rican Ground Lizard
  Ameiva polops Cope, 1863 -- valid -- St. Croix Ground Lizard
  Ammodramus Swainson, 1827 -- valid -- Grassland Sparrows
  Ammodramus caudacutus (J. F. Gmelin, 1788) -- valid -- Gorrión cola aguda, Saltmarsh Sharp-tailed Sparrow, Saltmarsh Sparrow
  Ammodramus leconteii (Audubon, 1844) -- valid -- bruant de le Conte, Gorrión de Le Conte, Le Conte's Sparrow
  Ammodramus maritimus (A. Wilson, 1811) -- valid -- Gorrión costero, Seaside Sparrow
  Ammodramus savannarum (J. F. Gmelin, 1789) -- valid -- bruant sauterelle, Gorrión chapulín, Grasshopper Sparrow
  Ammospermophilus Merriam, 1892 -- valid -- Antelope Squirrels
  Ammospermophilus harrisii (Audubon and Bachman, 1854) -- valid -- Ardilla-antilope de Sonora, Harris' antelope squirrel, Harris's Antelope Squirrel
  Ammospermophilus interpres (Merriam, 1890) -- valid -- Ardilla-antilope texana, Texas Antelope Squirrel
  Ammospermophilus leucurus (Merriam, 1889) -- valid -- Ardilla-antílope cola blanca, White-tailed Antelope Squirrel
  Ammospermophilus nelsoni (Merriam, 1893) -- valid -- Nelson's antelope ground squirrel, Nelson's Antelope Squirrel, San Joaquin antelope ground squirrel, San Joaquin antelope squirrel
  Ammotragus Blyth, 1840 -- valid -- Barbary sheep
  Ammotragus lervia (Pallas, 1777) -- valid -- aoudad, Barbary sheep, Barbary Sheep
  Amphibia -- valid -- Amphibians, amphibiens, anfíbio
  Amphisbaena bakeri Stejneger, 1904 -- valid -- Baker's Worm Lizard
  Amphisbaena caeca Cuvier, 1829 -- valid -- Puerto Rican Worm Lizard
  Amphisbaena fenestrata (Cope, 1861) -- valid -- Virgin Islands Worm Lizard
  Amphisbaena schmidti Gans, 1964 -- valid -- Schmidt's Worm Lizard
  Amphisbaena xera Thomas, 1966 -- valid -- North American Worm Lizard, Puerto Rican Dryland Worm Lizard
  Amphisbaenia -- valid -- Amphisbaenians, Worm Lizards
  Amphisbaenidae Gray, 1865 -- valid -- Amphisbaenids, Tropical Worm Lizards
  Amphispiza Coues, 1874 -- valid -- Desert Sparrows
  Amphispiza belli (Cassin, 1850) -- invalid -- Sage Sparrow, Zacatonero de artemisa
  Amphispiza bilineata (Cassin, 1850) -- valid -- Black-throated Sparrow, Zacatonero garganta negra
  Amphispiza quinquestriata (P. L. Sclater & Salvin, 1868) -- valid -- Five-striped Sparrow, Zacatonero cinco rayas
  Anas Linnaeus, 1758 -- valid -- Dabbling Ducks
  Anas acuta Linnaeus, 1758 -- valid -- canard pilet, Northern Pintail, Pato golondrino
  Anas americana Gmelin, 1789 -- valid -- American Wigeon, canard d'Amérique, Pato chalcuán
  Anas bahamensis Linnaeus, 1758 -- valid -- White-cheeked Pintail
  Anas clypeata Linnaeus, 1758 -- valid -- canard souchet, Northern Shoveler, Pato cucharón-norteño
  Anas crecca Linnaeus, 1758 -- valid -- Cerceta ala verde, Eurasian Teal, Green-winged Teal, sarcelle d'hiver
  Anas cyanoptera Vieillot, 1816 -- valid -- Cerceta canela, Cinnamon Teal, sarcelle cannelle
  Anas discors Linnaeus, 1766 -- valid -- Blue-winged Teal, Cerceta ala azul, sarcelle à ailes bleues
  Anas falcata Georgi, 1775 -- valid -- Falcated Duck, Falcated Teal
  Anas formosa Georgi, 1775 -- valid -- Baikal Teal
  Anas fulvigula Ridgway, 1874 -- valid -- Mottled Duck, Pato tejano
  Anas laysanensis Rothschild, 1892 -- valid -- Laysan Duck
  Anas oustaleti Salvadori, 1894 -- invalid -- Mariana Mallard, Marianas Mallard
  Anas penelope Linnaeus, 1758 -- valid -- canard siffleur, Eurasian Wigeon, Pato silbón
  Anas platyrhynchos Linnaeus, 1758 -- valid -- canard colvert, Mallard, Pato de collar
  Anas poecilorhyncha J. R. Forster, 1781 -- valid -- Indian Spot-billed Duck, Spot-billed Duck
  Anas querquedula Linnaeus, 1758 -- valid -- Cerceta ceja blanca, Garganey, sarcelle d'été
  Anas rubripes Brewster, 1902 -- valid -- American Black Duck, canard noir
  Anas strepera Linnaeus, 1758 -- valid -- canard chipeau, Gadwall, Pato friso
  Anas superciliosa Gmelin, 1789 -- valid -- Gray Duck, Pacific Black Duck
  Anas wyvilliana P. L. Sclater, 1878 -- valid -- Hawaiian Duck, Koloa, Koloa maoli, Koloa piwai, Koloa-maoli
  Anatidae -- valid -- canards, cygnes, Ducks, Geese, oies, Swans
  Anguidae -- valid -- Alligator Lizards, Anguid Lizards, Anguids, Galliwasps, Glass Lizards
  Anhinga Brisson, 1760 -- valid -- Anhingas
  Anhinga anhinga (Linnaeus, 1766) -- valid -- Anhinga, Anhinga americana, Anhinga d'Amérique
  Anhingidae Reichenbach, 1849 -- valid -- Anhingas, Darters
  Anniella Gray, 1852 -- valid -- Legless Lizards, North American Legless Lizards
  Anniella nigra Fischer, 1885 -- invalid
  Anniella pulchra Gray, 1852 -- valid -- California Legless Lizard, Lagartija-sin patas californiana, Silvery Legless Lizard
  Anolis Daudin, 1802 -- valid -- Anoles, Western Antillean Anoles
  Anolis acutus Hallowell, 1857 -- invalid -- St. Croix Anole
  Anolis carolinensis Voigt, 1832 -- valid -- anole vert, Anolis verde, Green Anole
  Anolis cooki Grant, 1931 -- invalid -- Cook's Anole
  Anolis cristatellus Duméril and Bibron, 1837 -- invalid -- Crested Anole, Puerto Rican Crested Anole
  Anolis cuvieri Merrem, 1820 -- invalid -- Puerto Rican Giant Anole
  Anolis cybotes Cope, 1862 -- invalid -- Large-headed Anole
  Anolis distichus Cope, 1861 -- invalid -- Bark Anole
  Anolis equestris Merrem, 1820 -- valid -- Knight Anole
  Anolis evermanni Stejneger, 1904 -- invalid -- Emerald Anole
  Anolis garmani Stejneger, 1899 -- invalid -- Jamaican Giant Anole
  Anolis gundlachi Peters, 1876 -- invalid
  Anolis krugi Peters, 1876 -- invalid -- Upland Grass Anole
  Anolis longiceps Schmidt, 1919 -- valid -- Navassa Anole
  Anolis monensis Stejneger, 1904 -- invalid -- Mona Anole
  Anolis occultus Williams and Rivero, 1965 -- valid -- Puerto Rican Twig Anole, Pygmy Anole
  Anolis poncensis Stejneger, 1904 -- invalid -- Dryland Grass Anole
  Anolis porcatus Gray, 1840 -- valid -- Cuban Green Anole
  Anolis pulchellus Duméril and Bibron, 1837 -- invalid -- Common Grass Anole
  Anolis sagrei Cocteau in Duméril and Bibron, 1837 -- invalid -- Anolis café, Brown Anole
  Anolis stratulus Cope, 1861 -- invalid -- Barred Anole
  Anous Stephens, 1826 -- valid -- Noddys
  Anous minutus F. Boie, 1844 -- valid -- Black Noddy, Charrán-bobo negro, Noddi noir
  Anous stolidus (Linnaeus, 1758) -- valid -- Brown Noddy, Charrán-bobo café, Noddi brun
  Anous tenuirostris (Temminck, 1823) -- valid -- Lesser Noddy, Sooty Noddy
  Anser Brisson, 1760 -- valid -- Bean Geese
  Anser albifrons (Scopoli, 1769) -- valid -- Ganso careto-mayor, Greater White-fronted Goose, oie rieuse
  Anser brachyrhynchus Baillon, 1834 -- valid -- oie à bec court, Pink-footed Goose
  Anser erythropus (Linnaeus, 1758) -- valid -- Lesser White-fronted Goose
  Anser fabalis (Latham, 1787) -- valid -- Bean Goose, oie des moissons
  Anseriformes -- valid -- canards, cygnes, Ducks, Geese, oies, sauvagine, Screamers, Swans, Waterfowl
  Anthracothorax Boie, 1831 -- valid -- Mangos
  Anthracothorax dominicus (Linnaeus, 1766) -- valid -- Antillean Mango
  Anthracothorax viridis (Audebert & Vieillot, 1801) -- valid -- Green Mango
  Anthus Bechstein, 1805 -- valid -- Pipits
  Anthus cervinus (Pallas, 1811) -- valid -- Bisbita garganta roja, Red-throated Pipit
  Anthus gustavi Swinhoe, 1863 -- valid -- Pechora Pipit
  Anthus hodgsoni Richmond, 1907 -- valid -- Olive Tree-Pipit, Olive-backed Pipit
  Anthus spinoletta (Linnaeus, 1758) -- valid -- Water Pipit
  Anthus spragueii (Audubon, 1844) -- valid -- Bisbita llanera, Sprague's Pipit
  Anthus trivialis (Linnaeus, 1758) -- valid -- Brown Tree-Pipit, Tree Pipit
  Antilocapra Ord, 1818 -- valid
  Antilocapra americana (Ord, 1815) -- valid -- Berrendo, Pronghorn, pronghorn
  Antilocapra americana americana (Ord, 1815) -- valid
  Antrozous H. Allen, 1862 -- valid -- pallid bats
  Antrozous pallidus (LeConte, 1856) -- valid -- Murciélago-desértico norteño, Pallid Bat, pallid bat
  Anura -- valid -- crapauds, Frogs, grenouilles, perereca, rã, sapo, Toads
  Apalone ferox (Schneider, 1783) -- valid -- Florida Softshell, Florida Softshell Turtle
  Apalone mutica (Le Sueur, 1827) -- valid -- Smooth Softshell, Smooth Softshell Turtle
  Aphelocoma Cabanis, 1851 -- valid -- Scrub Jays
  Aphelocoma coerulescens (Bosc, 1795) -- valid -- Chara pecho rayado, Florida Scrub Jay, Florida Scrub-Jay, Scrub Jay
  Aphelocoma ultramarina (Bonaparte, 1825) -- valid -- Chara pecho gris, Gray-breasted Jay, Mexican Jay
  Aphriza Audubon, 1839 -- valid -- Surfbirds
  Aphriza virgata (Gmelin, 1789) -- valid -- Bécasseau du ressac, Playero roquero, Surfbird
  Aplodontia Richardson, 1829 -- valid -- Mountain Beaver
  Aplodontia rufa (Rafinesque, 1817) -- valid -- Mountain Beaver, Sewellel
  Aplodontiidae Brandt, 1855 -- valid -- Mountain Beavers
  Aplonis Gould, 1836 -- valid
  Apodidae -- valid -- Swifts
  Apodiformes -- valid -- Hummingbirds, Swifts
  Apus Scopoli, 1777 -- valid -- Common Swifts
  Apus apus (Linnaeus, 1758) -- valid -- Common Swift
  Apus pacificus (Latham, 1802) -- valid -- Fork-tailed Swift
  Aquila Brisson, 1760 -- valid -- Golden Eagles
  Aquila chrysaetos (Linnaeus, 1758) -- valid -- Águila real, Aigle royal, Golden Eagle
  Aramidae -- valid -- Limpkin, Limpkins
  Aramus Vieillot, 1816 -- valid -- Limpkins
  Aramus guarauna (Linnaeus, 1766) -- valid -- Carao, Limpkin
  Aratinga Spix, 1824 -- valid -- Parakeets
  Aratinga canicularis (Linnaeus, 1758) -- valid -- Orange-fronted Parakeet, Perico frente naranja
  Aratinga chloroptera (Souance, 1856) -- valid -- Hispaniolan Parakeet
  Aratinga pertinax (Linnaeus, 1758) -- valid -- Brown-throated Parakeet
  Arborimus Taylor, 1915 -- valid -- Tree Voles
  Arborimus albipes (Merriam, 1901) -- valid -- White-footed Vole
  Arborimus longicaudus (True, 1890) -- valid -- Red Tree Vole, Reddish Tree Mouse
  Archilochus Reichenbach, 1854 -- valid -- Ruby-throated Hummingbirds
  Archilochus alexandri (Bourcier & Mulsant, 1846) -- valid -- Black-chinned Hummingbird, Colibrí barba negra
  Archilochus colubris (Linnaeus, 1758) -- valid -- colibri à gorge rubis, Colibrí garganta rubí, Ruby-throated Hummingbird
  Arctocephalus É. Geoffroy Saint-Hilaire and F. Cuvier, 1826 -- valid -- southern fur seals
  Arctocephalus townsendi Merriam, 1897 -- valid -- Guadalupe Fur Seal, Lobo-fino de Guadalupe
  Ardea Linnaeus, 1758 -- valid -- Great Herons
  Ardea herodias Linnaeus, 1758 -- valid -- Garza morena, Grand Héron, Great Blue Heron
  Ardeidae Leach, 1820 -- valid -- Bitterns, Egrets, Herons
  Arenaria Brisson, 1760 -- valid -- Turnstones
  Arenaria interpres (Linnaeus, 1758) -- valid -- Ruddy Turnstone, Tournepierre à collier, Vuelvepiedras rojizo
  Arenaria melanocephala (Vigors, 1829) -- valid -- Black Turnstone, Tournepierre noir, Vuelvepiedras negro
  Aristelliger Cope, 1862 -- valid -- Croaking Geckos
  Aristelliger cochranae Grant, 1931 -- valid -- Cochran's Croaking Gecko
  Arizona Kennicott in Baird, 1859 -- valid -- Glossy Snakes
  Arizona elegans Kennicott in Baird, 1859 -- valid -- Culebra brillante, Glossy Snake
  Arremonops Ridgway, 1896 -- valid -- Olive Sparrows
  Arremonops rufivirgatus (Lawrence, 1851) -- valid -- Olive Sparrow, Rascador oliváceo
  Arrhyton Günther, 1858 -- valid -- West Indian Garden Snakes
  Arrhyton exiguum Cope, 1863 -- valid -- Puerto Rican Garden Snake
  Artamidae Vigors, 1825 -- valid -- Woodswallows
  Artamus Vieillot, 1816 -- valid -- Wood-Swallows
  Artibeus Leach, 1821 -- valid -- fruit-eating bats
  Artibeus hartii Thomas, 1892 -- invalid -- Hart's fruit-eating bat, velvety fruit-eating bat
  Artibeus jamaicensis Leach, 1821 -- valid -- Jamaican fruit-eating bat, Jamaican Fruit-eating Bat, Murciélago-frutero de Jamaica
  Asio Brisson, 1760 -- valid -- Eared Owls
  Asio flammeus (Pontoppidan, 1763) -- valid -- Búho cuerno corto, hibou des marais, Short-eared Owl
  Asio otus (Linnaeus, 1758) -- valid -- Búho cara café, hibou moyen-duc, Long-eared Owl
  Athene Boie, 1822 -- valid -- Burrowing Owls
  Athene cunicularia (Molina, 1782) -- valid -- Burrowing Owl, chevêche des terriers, Tecolote llanero
  Atthis Reichenbach, 1854 -- valid -- Bumblebee Hummingbirds
  Atthis heloisa (Lesson & Delattre, 1839) -- valid -- Bumblebee Hummingbird, Zumbador mexicano
  Auriparus S. F. Baird, 1864 -- valid
  Auriparus flaviceps (Sundevall, 1850) -- valid -- Baloncillo, Verdin
  Aves -- valid -- Birds, oiseaux
  Aythya F. Boie, 1822 -- valid -- Diving Ducks
  Aythya affinis (Eyton, 1838) -- valid -- Lesser Scaup, Pato boludo-menor, petit fuligule
  Aythya americana (Eyton, 1838) -- valid -- fuligule à tête rouge, Pato cabeza roja, Redhead
  Aythya collaris (Donovan, 1809) -- valid -- fuligule à collier, Pato pico anillado, Ring-necked Duck
  Aythya ferina (Linnaeus, 1758) -- valid -- Common Pochard
  Aythya fuligula (Linnaeus, 1758) -- valid -- fuligule morillon, Tufted Duck
  Aythya marila (Linnaeus, 1761) -- valid -- fuligule milouinan, Greater Scaup, Pato boludo-mayor
  Aythya valisineria (A. Wilson, 1814) -- valid -- Canvasback, fuligule à dos blanc, Pato coacoxtle
  Baeolophus inornatus (Gambel, 1845) -- valid -- Carbonero sencillo, Oak Titmouse, Plain Titmouse
  Baiomys True, 1894 -- valid -- American Pygmy Mice, Pygmy Mice
  Balaena Linnaeus, 1758 -- valid -- right whales
  Balaena mysticetus Linnaeus, 1758 -- valid -- baleine boréale, black right whale, Bowhead, bowhead whale
  Balaenidae Gray, 1821 -- valid -- bowhead whales, right whales
  Balaenoptera Lacépède, 1804 -- valid -- baleen whales, finback whales, rorquals
  Balaenoptera acutorostrata Lacépède, 1804 -- valid -- Ballena menor, Common Minke Whale, Minke Whale, northern minke whale, petit rorqual
  Balaenoptera borealis Lesson, 1828 -- valid -- Ballena de Sei, rorqual boréal, Sei Whale
  Balaenoptera edeni Anderson, 1879 -- valid -- Ballena tropical, Eden's whale
  Balaenoptera musculus (Linnaeus, 1758) -- valid -- Ballena azul, Blue Whale, rorqual bleu
  Balaenoptera physalus (Linnaeus, 1758) -- valid -- Ballena de aleta, Fin Whale, finback whale, rorqual commun
  Balaenopteridae Gray, 1864 -- valid -- rorquals
  Bartramia Lesson, 1831 -- valid -- Upland Sandpipers
  Bartramia longicauda (Bechstein, 1812) -- valid -- Maubèche des champs, Upland Sandpiper, Zarapito ganga
  Basileuterus Cabanis, 1849 -- valid -- Basileuterine Warblers
  Basileuterus rufifrons (Swainson, 1838) -- valid -- Chipe gorra rufa, Paruline à calotte rousse, Rufous-capped Warbler
  Basiliscus Laurenti, 1768 -- valid -- Basilisks
  Basiliscus vittatus Wiegmann, 1828 -- valid -- Basilisco rayado, Brown Basilisk
  Bassariscus Coues, 1887 -- valid -- ringtails
  Bassariscus astutus (Lichtenstein, 1830) -- valid -- Cacomixtle norteño, Ringtail
  Batrachoseps Bonaparte, 1839 -- valid -- Slender Salamanders
  Batrachoseps aridus Brame, 1970 -- invalid -- Desert Slender Salamander
  Batrachoseps attenuatus (Eschscholtz, 1833) -- valid -- California Slender Salamander
  Batrachoseps campi Marlow, Brode and Wake, 1979 -- valid -- Inyo Mountains Salamander, Inyo Mountains Slender Salamander
  Batrachoseps nigriventris Cope, 1869 -- valid -- Black-bellied Slender Salamander
  Batrachoseps simatus Brame and Murray, 1968 -- valid -- Kern Canyon Slender Salamander
  Batrachoseps stebbinsi Brame and Murray, 1968 -- valid -- Tehachapi Slender Salamander
  Batrachoseps wrighti (Bishop, 1937) -- valid -- Oregon Slender Salamander
  Berardius Duvernoy, 1851 -- valid -- giant beaked whales, giant bottle-nosed whales
  Berardius arnuxii Duvernoy, 1851 -- valid -- Arnoux's Beaked Whale, Arnux's beaked whale
  Berardius bairdii Stejneger, 1883 -- valid -- Baird's Beaked Whale, north Pacific bottle-nosed whale
  Bison C. H. Smith, 1827 -- valid -- bison
  Bison bison (Linnaeus, 1758) -- valid -- American bison, American Bison, bison, Bisonte americano
  Bison bison bison (Linnaeus, 1758) -- invalid -- bison, plains bison
  Blarina Gray, 1838 -- valid -- American short-tailed shrews
  Blarina brevicauda (Say, 1823) -- valid -- grande musaraigne, mole shrew, Northern Short-tailed Shrew, short-tailed shrew
  Blarina carolinensis (Bachman, 1837) -- valid -- Southern Short-tailed Shrew
  Blarina hylophaga Elliot, 1899 -- valid -- Elliot's Short-tailed Shrew
  Bogertophis rosaliae (Mocquard, 1899) -- valid -- Baja California Rat Snake, Baja California Ratsnake, Culebra-ratonera de Baja California
  Boidae Gray, 1825 -- valid -- Boas, Boids
  Boiga Fitzinger, 1826 -- valid -- Boigas, Catsnakes
  Boiga irregularis (Merrem, 1802) -- valid -- Brown Tree Snake, Brown Treesnake
  Bombycilla Vieillot, 1808 -- valid -- Waxwings
  Bombycilla cedrorum Vieillot, 1808 -- valid -- Ampelis chinito, Cedar Waxwing, jaseur d'Amérique
  Bombycilla garrulus (Linnaeus, 1758) -- valid -- Bohemian Waxwing, jaseur boréal
  Bombycillidae Swainson, 1831 -- valid -- Waxwings
  Bonasa Stephens, 1819 -- valid -- Ruffed Grouse
  Bonasa umbellus (Linnaeus, 1766) -- valid -- gélinotte huppée, Ruffed Grouse
  Botaurus Stephens, 1819 -- valid -- Brown Bitterns
  Botaurus lentiginosus (Rackett, 1813) -- valid -- American Bittern, Avetoro norteño, Butor d'Amérique
  Bovidae Gray, 1821 -- valid -- antelopes, bovids, cattle, goats, sheep
  Brachyphylla Gray, 1834 -- valid -- Antillean fruit-eating bats
  Brachyphylla cavernarum Gray, 1834 -- valid -- Antillean fruit-eating bat, Antillean Fruit-eating Bat, antillian fruit-eating bat
  Branta Scopoli, 1769 -- valid -- Brent Geese
  Branta bernicla (Linnaeus, 1758) -- valid -- bernache cravant, Brant, Brant Goose, Brent Goose, Ganso de collar
  Branta canadensis (Linnaeus, 1758) -- valid -- bernache du Canada, Canada Goose, Ganso canadiense
  Branta leucopsis (Bechstein, 1803) -- valid -- Barnacle Goose, bernache nonnette
  Brotogeris Vigors, 1825 -- valid -- Canary-winged Parakeets
  Brotogeris versicolurus (Statius Muller, 1776) -- valid -- Canary-winged Parakeet, White-winged Parakeet
  Bubo Dumeril, 1805 -- valid -- Horned Owls
  Bubo virginianus (Gmelin, 1788) -- valid -- Búho cornudo, grand-duc d'Amérique, Great Horned Owl
  Bubulcus Bonaparte, 1855 -- valid -- Cattle Egrets
  Bubulcus ibis (Linnaeus, 1758) -- valid -- Cattle Egret, Garza ganadera, Héron garde-boeufs, Western Cattle Egret
  Bucephala S. F. Baird, 1858 -- valid -- Goldeneyes
  Bucephala albeola (Linnaeus, 1758) -- valid -- Bufflehead, Pato monja, petit garrot
  Bucephala clangula (Linnaeus, 1758) -- valid -- Common Goldeneye, garrot à oeil d'or, Pato chillón
  Bucephala islandica (Gmelin, 1789) -- valid -- Barrow's Goldeneye, garrot d'Islande
  Bufo alvarius Girard in Baird, 1859 -- invalid -- Colorado River Toad, Sapo del desierto-sonorense, Sonoran Desert Toad
  Bufo americanus Holbrook, 1836 -- invalid -- American Toad, crapaud d'Amérique
  Bufo boreas Baird and Girard, 1852 -- invalid -- Sapo del Oeste, Western Toad
  Bufo canorus Camp, 1916 -- invalid -- Yosemite Toad
  Bufo cognatus Say in James, 1823 -- invalid -- Great Plains Toad, Sapo de la gran planicie
  Bufo debilis Girard, 1854 -- invalid -- Green Toad, Sapo verde
  Bufo exsul Myers, 1942 -- invalid -- Black Toad
  Bufo hemiophrys Cope, 1886 -- invalid -- Canadian Toad
  Bufo houstonensis Sanders, 1953 -- invalid -- Houston Toad
  Bufo marinus (Linnaeus, 1758) -- invalid -- Cane Toad, Giant Toad, Marine Toad, Sapo gigante
  Bufo microscaphus Cope, 1867 -- invalid -- Arizona Toad, Sapo del suroeste, Southwestern Toad
  Bufo punctatus Baird and Girard, 1852 -- invalid -- Red-spotted Toad, Sapo manchas rojas
  Bufo quercicus Holbrook, 1840 -- invalid -- Oak Toad
  Bufo retiformis Sanders and Smith, 1951 -- invalid -- Sapo verde-sonorense, Sonoran Green Toad
  Bufo speciosus Girard, 1854 -- invalid -- Sapo texano, Texas Toad
  Bufo terrestris (Bonnaterre, 1789) -- invalid -- Southern Toad
  Bufo valliceps Wiegmann, 1833 -- invalid -- Gulf Coast Toad, Sapo del golfo
  Bufo woodhousii Girard, 1854 -- invalid -- Woodhouse's Toad
  Bulweria Bonaparte, 1843 -- valid -- Bulwer's Petrels
  Bulweria fallax Jouanin, 1955 -- valid -- Jouanin's Petrel, Pétrel de Jouanin
  Burhinidae Mathews, 1912 -- valid -- Stone-curlews, Thick-knees
  Burhinus Illiger, 1811 -- valid -- Thick-knees
  Burhinus bistriatus (Wagler, 1829) -- valid -- Alcaraván americano, Double-striped Thick-knee, Oedicnème bistrié
  Buteo Lacepede, 1799 -- valid -- Buteonine Hawks
  Buteo albicaudatus Vieillot, 1816 -- valid -- Aguililla cola blanca, Buse à queue blanche, White-tailed Hawk
  Buteo albonotatus Kaup, 1847 -- valid -- Aguililla aura, Buse à queue barrée, Zone-tailed Hawk
  Buteo brachyurus Vieillot, 1816 -- valid -- Aguililla cola corta, Buse à queue courte, Short-tailed Hawk
  Buteo jamaicensis (Gmelin, 1788) -- valid -- Aguililla cola roja, Buse à queue rousse, Red-tailed Hawk
  Buteo lagopus (Pontoppidan, 1763) -- valid -- Aguililla ártica, Buse pattue, Rough-legged Buzzard, Rough-legged Hawk, Roughleg
  Buteo lineatus (Gmelin, 1788) -- valid -- Aguililla pecho rojo, Buse à épaulettes, Red-shouldered Hawk
  Buteo magnirostris (Gmelin, 1788) -- invalid -- Buse à gros bec, Roadside Hawk
  Buteo platypterus (Vieillot, 1823) -- valid -- Aguililla ala ancha, Broad-winged Hawk, Petite Buse
  Buteo regalis (G. R. Gray, 1844) -- valid -- Aguililla real, Buse rouilleuse, Ferruginous Hawk
  Buteo solitarius Peale, 1848 -- valid -- Buse d'Hawaï, Hawaiian Hawk, Lo
  Buteo swainsoni Bonaparte, 1838 -- valid -- Aguililla de Swainson, Buse de Swainson, Swainson's Hawk
  Buteogallus Lesson, 1830 -- valid -- Black-Hawks
  Buteogallus anthracinus (Deppe, 1830) -- valid -- Aguililla-negra menor, Buse noire, Common Black Hawk, Common Black-Hawk
  Butorides Blyth, 1852 -- valid -- Green-backed Herons
  Butorides striatus (Linnaeus, 1758) -- invalid -- Green-backed Heron
  Cacatua Vieillot, 1817 -- valid -- Cockatoos
  Cacatua galerita (Latham, 1790) -- valid -- Sulphur-crested Cockatoo
  Caiman crocodilus (Linnaeus, 1758) -- valid -- Common Caiman, Spectacled Caiman
  Calamospiza Bonaparte, 1838 -- valid -- Lark Buntings
  Calamospiza melanocorys Stejneger, 1885 -- valid -- bruant noir et blanc, Gorrión ala blanca, Lark Bunting
  Calcarius Bechstein, 1802 -- valid -- Longspurs
  Calcarius lapponicus (Linnaeus, 1758) -- valid -- bruant lapon, Escribano ártico, Lapland Longspur
  Calcarius mccownii (Lawrence, 1851) -- invalid -- Escribano de McCown, McCown's Longspur
  Calcarius ornatus (J. K. Townsend, 1837) -- valid -- Chestnut-collared Longspur, Escribano collar castaño
  Calcarius pictus (Swainson, 1832) -- valid -- bruant de Smith, Smith's Longspur
  Calidris Merrem, 1804 -- valid -- Stints
  Calidris acuminata (Horsfield, 1821) -- valid -- Bécasseau à queue pointue, Sharp-tailed Sandpiper
  Calidris alba (Pallas, 1764) -- valid -- Bécasseau sanderling, Playero blanco, Sanderling
  Calidris alpina (Linnaeus, 1758) -- valid -- Bécasseau variable, Dunlin, Playero dorso rojo
  Calidris bairdii (Coues, 1861) -- valid -- Baird's Sandpiper, Bécasseau de Baird, Playero de Baird
  Calidris canutus (Linnaeus, 1758) -- valid -- Bécasseau maubèche, Playero canuto, Red Knot
  Calidris ferruginea (Pontoppidan, 1763) -- valid -- Bécasseau cocorli, Curlew Sandpiper
  Calidris fuscicollis (Vieillot, 1819) -- valid -- Bécasseau à croupion blanc, Playero rabadilla blanca, White-rumped Sandpiper
  Calidris maritima (Brunnich, 1764) -- valid -- Bécasseau violet, Purple Sandpiper
  Calidris mauri (Cabanis, 1857) -- valid -- Bécasseau d'Alaska, Playero occidental, Western Sandpiper
  Calidris melanotos (Vieillot, 1819) -- valid -- Bécasseau à poitrine cendrée, Pectoral Sandpiper, Playero pectoral
  Calidris minuta (Leisler, 1812) -- valid -- Bécasseau minute, Little Stint
  Calidris minutilla (Vieillot, 1819) -- valid -- Bécasseau minuscule, Least Sandpiper, Playero chichicuilote
  Calidris ptilocnemis (Coues, 1873) -- valid -- Bécasseau des Aléoutiennes, Rock Sandpiper
  Calidris pusilla (Linnaeus, 1766) -- valid -- Bécasseau semipalmé, Playero semipalmeado, Semipalmated Sandpiper
  Calidris ruficollis (Pallas, 1776) -- valid -- Bécasseau à col roux, Red-necked Stint
  Calidris subminuta (Middendorff, 1853) -- valid -- Bécasseau à longs doigts, Long-toed Stint
  Calidris temminckii (Leisler, 1812) -- valid -- Bécasseau de Temminck, Temminck's Stint
  Calidris tenuirostris (Horsfield, 1821) -- valid -- Bécasseau de l'Anadyr, Great Knot
  Callipepla Wagler, 1832 -- valid -- Crested Quails
  Callipepla californica (Shaw, 1798) -- valid -- California Quail, Californian Quail, Codorniz californiana
  Callipepla gambelii (Gambel, 1843) -- valid -- Codorniz chiquiri, Gambel's Quail
  Callipepla squamata (Vigors, 1830) -- valid -- Codorniz escamosa, Scaled Quail
  Calliphlox Boie, 1831 -- valid -- Woodstars
  Calliphlox evelynae (Bourcier, 1847) -- valid -- Bahama Woodstar, Bahaman Woodstar
  Callisaurus Blainville, 1835 -- valid -- Zebra-tailed Lizards
  Callisaurus draconoides Blainville, 1835 -- valid -- Lagartija cachora, Zebra-tailed Lizard
  Callorhinus J. E. Gray, 1859 -- valid -- northern fur seals
  Callorhinus ursinus (Linnaeus, 1758) -- valid -- Northern Fur Seal
  Caloenas G. R. Gray, 1840 -- valid -- Nicobar Pigeons
  Caloenas nicobarica (Linnaeus, 1758) -- valid -- Nicobar Pigeon
  Calonectris diomedea (Scopoli, 1769) -- valid -- Cory's Shearwater, Pardela de Cory, Puffin cendré, puffin cendrée
  Calothorax G. R. Gray, 1840 -- valid -- Lucifer Hummingbirds
  Calothorax lucifer (Swainson, 1827) -- valid -- Colibrí lucifer, Lucifer Hummingbird, Lucifer Sheartail
  Calypte Gould, 1856 -- valid -- Capped Hummingbirds
  Calypte anna (Lesson, 1829) -- valid -- Anna's Hummingbird, Colibrí cabeza roja
  Calypte costae (Bourcier, 1839) -- valid -- Colibrí cabeza violeta, Costa's Hummingbird
  Campephagidae Vigors, 1825 -- valid -- Cuckoo-Shrikes, Cuckooshrikes
  Campephilus G. R. Gray, 1840 -- valid -- Ivory-billed Woodpeckers
  Camptorhynchus Bonaparte, 1838 -- valid -- Labrador Ducks
  Camptorhynchus labradorius (Gmelin, 1789) -- valid -- eider du Labrador, Labrador Duck
  Camptostoma P. L. Sclater, 1857 -- valid -- Beardless-Tyrannulets
  Camptostoma imberbe P. L. Sclater, 1857 -- valid -- Mosquero lampiño, Northern Beardless Tyrannulet, Northern Beardless-Tyrannulet
  Campylorhynchus Spix, 1824 -- valid -- Cactus Wrens
  Campylorhynchus brunneicapillus (Lafresnaye, 1835) -- valid -- Cactus Wren
  Candoia Gray, 1842 -- valid -- Bevel-nosed Boas, Keel-scaled Boas
  Candoia bibroni (Duméril and Bibron, 1844) -- valid -- Bibron's Bevel-nosed Boa, Bibron's Keel-scaled Boa, Pacific Tree Boa
  Candoia carinata (Schneider, 1801) -- valid -- Pacific Ground Boa, Pacific Keel-scaled Boa
  Canidae Fischer, 1817 -- valid -- coyotes, dogs, foxes, jackals, wolves
  Canis Linnaeus, 1758 -- valid -- dogs, foxes, jackals
  Canis latrans Say, 1823 -- valid -- Coyote, coyote, Coyote
  Canis lupus Linnaeus, 1758 -- valid -- Gray Wolf, Lobo gris, loup, Wolf
  Canis rufus Audubon and Bachman, 1851 -- invalid -- Red Wolf
  Caperea Gray, 1864 -- valid -- pygmy right whales
  Caperea marginata (Gray, 1846) -- valid -- Pygmy Right Whale
  Caprimulgidae -- valid -- Nightjars
  Caprimulgus Linnaeus, 1758 -- valid -- Nightjars
  Caprimulgus carolinensis Gmelin, 1789 -- valid -- Chuck-will's-widow, engoulevent de Caroline, Tapacamino de Carolina
  Caprimulgus indicus Latham, 1790 -- valid -- Gray Nightjar, Grey Nightjar, Jungle Nightjar
  Caprimulgus noctitherus (Wetmore, 1919) -- valid -- Puerto Rican Nightjar, Puerto Rican Whip-poor-will
  Caprimulgus ridgwayi (Nelson, 1897) -- valid -- Buff-collared Nightjar, Tapacamino tu-cuchillo
  Caprimulgus vociferus A. Wilson, 1812 -- valid -- engoulevent bois-pourri, Tapacamino cuerporruín-norteño, Whip-poor-will
  Capromyidae Smith, 1842 -- valid -- capromyid rodents
  Caracara plancus (J. F. Miller, 1777) -- valid -- Caracara quebrantahuesos, Crested Caracara, Southern Caracara, Southern Crested Caracara
  Cardellina Bonaparte, 1850 -- valid -- Red-faced Warblers
  Cardellina rubrifrons (Giraud Jr, 1841) -- valid -- Chipe cara roja, Paruline à face rouge, Red-faced Warbler
  Cardinalidae -- valid -- Cardinal-Grosbeaks, Cardinals, Grosbeaks, Saltators
  Cardinalis Bonaparte, 1838 -- valid -- Cardinals
  Cardinalis cardinalis (Linnaeus, 1758) -- valid -- Cardenal rojo, cardinal rouge, Northern Cardinal
  Cardinalis sinuatus Bonaparte, 1838 -- valid -- Cardenal pardo, Pyrrhuloxia
  Carduelinae Vigors, 1825 -- invalid -- Cardueline Finches
  Carduelis Brisson, 1760 -- valid -- Goldfinches
  Carduelis carduelis (Linnaeus, 1758) -- valid -- chardonneret élégant, Eurasian Goldfinch, European Goldfinch
  Carduelis cucullata Swainson, 1820 -- invalid -- Red Siskin
  Carduelis flammea (Linnaeus, 1758) -- invalid -- Common Redpoll, sizerin flammé
  Carduelis hornemanni (Holböll, 1843) -- invalid -- Arctic Redpoll, Hoary Redpoll, sizerin blanchâtre
  Carduelis lawrencei Cassin, 1850 -- invalid -- Jilguero gris, Lawrence's Goldfinch
  Carduelis pinus (A. Wilson, 1810) -- invalid -- Jilguero pinero, Pine Siskin, tarin des pins
  Carduelis psaltria (Say, 1822) -- invalid -- Jilguero dominico, Lesser Goldfinch
  Carduelis sinica (Linnaeus, 1766) -- invalid -- Grey-capped Greenfinch, Oriental Goldfinch, Oriental Greenfinch
  Carduelis tristis (Linnaeus, 1758) -- invalid -- American Goldfinch, chardonneret jaune, Jilguero canario
  Caretta Rafinesque, 1814 -- valid -- Loggerhead Sea Turtles
  Caretta caretta (Linnaeus, 1758) -- valid -- Loggerhead, Loggerhead Sea Turtle, Tortuga-marina caguama
  Carlia Gray, 1845 -- valid -- Four-fingered Skinks, Rainbow Skinks
  Carlia fuscum (Duméril and Bibron, 1839) -- invalid
  Carphophis Gervais, 1843 -- valid -- Worm Snakes, Wormsnakes
  Carphophis amoenus (Say, 1825) -- valid -- Eastern Worm Snake, Eastern Wormsnake
  Carpodacus Kaup, 1829 -- valid -- Purple Finches
  Carpodacus cassinii S. F. Baird, 1854 -- invalid -- Cassin's Finch, Pinzón de Cassin
  Carpodacus erythrinus (Pallas, 1770) -- valid -- Common Rosefinch
  Carpodacus mexicanus (P. L. Statius Müller, 1776) -- invalid -- House Finch, Pinzón mexicano, roselin familier
  Carpodacus purpureus (J. F. Gmelin, 1789) -- invalid -- Pinzón purpúreo, Purple Finch, roselin pourpré
  Casmerodius Gloger, 1842 -- invalid -- Great Egrets
  Casmerodius albus (Linnaeus, 1758) -- invalid -- Garza blanca, grande aigrette, Great Egret
  Castor Linnaeus, 1758 -- valid -- beavers
  Castor canadensis Kuhl, 1820 -- valid -- American Beaver, castor, Castor Americano
  Castoridae Hemprich, 1820 -- valid -- Beavers
  Catharacta Brünnich, 1764 -- invalid -- Skuas
  Cathartes Illiger, 1811 -- valid -- Turkey Vultures
  Cathartes aura (Linnaeus, 1758) -- valid -- Turkey Vulture, Urubu à tête rouge, Zopilote aura
  Cathartidae Lafresnaye, 1839 -- valid -- American Vultures, New World Vultures
  Catharus Bonaparte, 1850 -- valid
  Catharus fuscescens (Stephens, 1817) -- valid -- grive fauve, Veery, Zorzal rojizo
  Catharus guttatus (Pallas, 1811) -- valid -- grive solitaire, Hermit Thrush, Zorzal cola rufa
  Catharus minimus (Lafresnaye, 1848) -- valid -- Gray-cheeked Thrush, Grey-cheeked Thrush, grive à joues grises, Zorzal cara gris
  Catharus ustulatus (Nuttall, 1840) -- valid -- grive à dos olive, Swainson's Thrush, Zorzal de Swainson
  Catherpes S. F. Baird, 1858 -- valid -- Canyon Wren
  Catherpes mexicanus (Swainson, 1829) -- valid -- Canyon Wren, Chivirín barranqueño
  Catoptrophorus Bonaparte, 1827 -- invalid -- Willets
  Catoptrophorus semipalmatus (Gmelin, 1789) -- invalid -- chevalier semipalmé, Willet, Willet
  Caudata -- valid -- Salamanders, salamandra, salamandres
  Cebidae Bonaparte, 1831 -- valid -- new world monkeys
  Cemophora Cope, 1860 -- valid -- Scarlet Snakes
  Cemophora coccinea (Blumenbach, 1788) -- valid -- Scarlet Snake
  Centrocercus Swainson, 1832 -- valid -- Sage Grouse
  Centrocercus urophasianus (Bonaparte, 1827) -- valid -- Greater Sage Grouse, Greater Sage-Grouse, Sage Grouse
  Cepphus Pallas, 1769 -- valid -- Guillemots
  Cepphus columba Pallas, 1811 -- valid -- Arao pichón, Guillemot colombin, Pigeon Guillemot
  Cepphus grylle (Linnaeus, 1758) -- valid -- Black Guillemot, Guillemot à miroir
  Cerberus Cuvier, 1829 -- valid -- Dog-faced Water Snakes
  Cerberus rynchops (Schneider, 1799) -- valid -- Dog-faced Water Snake, South Asian Bockadam
  Cercopithecidae Gray, 1821 -- valid -- Old World monkeys
  Cerorhinca Bonaparte, 1828 -- valid -- Rhinoceros Auklets
  Cerorhinca monocerata (Pallas, 1811) -- valid -- Alca rinoceronte, Macareux rhinocéros, Rhinoceros Auklet
  Certhia Linnaeus, 1758 -- valid -- Creepers
  Certhiidae Leach, 1820 -- valid -- Creepers, grimpereaux
  Cervidae Goldfuss, 1820 -- valid -- caribou, cervids, deer, moose, wapiti
  Cervus Linnaeus, 1758 -- valid -- deer, red deer, wapiti
  Cervus elaphus Linnaeus, 1758 -- valid -- Ciervo común, elk, Red Deer (see comments), wapiti, wapiti, wapiti or elk
  Cervus elaphus elaphus Linnaeus, 1758 -- valid -- wapiti
  Ceryle alcyon (Linnaeus, 1758) -- invalid -- Belted Kingfisher, martin-pêcheur d'Amérique, Martín-pescador norteño
  Ceryle torquata (Linnaeus, 1766) -- invalid -- Martín-pescador de collar, Ringed Kingfisher
  Cetacea Brisson, 1762 -- valid -- baleia, baleines, cetaceans, cetáceo, cétacés, dauphins, dolphins, golfinho, mammfères marins, marine mammals, marsouins, porpoises, whales
  Cettia Bonaparte, 1834 -- valid -- Bush-Warblers
  Cettia annae (Hartlaub & Finsch, 1868) -- invalid -- Palau Bush Warbler
  Cettia diphone (Kittlitz, 1830) -- invalid -- Japanese Bush Warbler, Japanese Bush-Warbler
  Chaetoptila G. R. Gray, 1869 -- valid -- Kioeas, Kioeas
  Chaetoptila angustipluma (Peale, 1848) -- valid -- Kioea, Kioea
  Chaetura Stephens, 1826 -- valid -- Stiff-tailed Swifts
  Chaetura brachyura (Jardine, 1846) -- valid -- Short-tailed Swift
  Chaetura pelagica (Linnaeus, 1758) -- valid -- Chimney Swift, martinet ramoneur, Vencejo de chimenea
  Chaetura vauxi (J. K. Townsend, 1839) -- valid -- Vaux's Swift, Vencejo de Vaux
  Chamaea Gambel, 1847 -- valid -- Wrentits
  Chamaea fasciata (Gambel, 1845) -- valid -- Camea, Wrentit
  Chamaeleo Laurenti, 1768 -- valid -- Chameleons
  Chamaeleo jacksonii Boulenger, 1896 -- valid -- Jackson's Chameleon
  Chamaeleonidae -- valid -- Chameleons
  Charadriidae Leach, 1820 -- valid -- Plovers
  Charadriiformes -- valid -- alcidés, Alcids, Auks, goélands, Gulls, huîtriers, Oystercatchers, Plovers, Shore Birds
  Charadrius Linnaeus, 1758 -- valid -- Ringed Plovers
  Charadrius alexandrinus Linnaeus, 1758 -- valid -- Chorlo nevado, Kentish Plover, Snowy Plover
  Charadrius dubius Scopoli, 1786 -- valid -- Little Ringed Plover, Pluvier petit-gravelot
  Charadrius hiaticula Linnaeus, 1758 -- valid -- Common Ringed Plover, Pluvier grand-gravelot
  Charadrius leschenaultii Lesson, 1826 -- valid -- Greater Sand Plover, Greater Sand-Plover, Pluvier de Leschenault
  Charadrius melodus Ord, 1824 -- valid -- Chorlo chiflador, Piping Plover, Pluvier siffleur
  Charadrius mongolus Pallas, 1776 -- valid -- Lesser Sand Plover, Lesser Sand-Plover, Mongolian Plover, Pluvier de Mongolie
  Charadrius montanus J. K. Townsend, 1837 -- valid -- Chorlo llanero, Mountain Plover, Pluvier montagnard
  Charadrius morinellus Linnaeus, 1758 -- valid -- Eurasian Dotterel, Pluvier guignard
  Charadrius semipalmatus Bonaparte, 1825 -- valid -- Chorlo semipalmeado, pluvier à semipalmé, Pluvier semipalmé, Semipalmated Plover
  Charadrius vociferus Linnaeus, 1758 -- valid -- Chorlo tildío, Killdeer, Pluvier kildir
  Charadrius wilsonia Ord, 1814 -- valid -- Chorlo pico grueso, Pluvier de Wilson, Wilson's Plover
  Charina Gray, 1849 -- valid -- Rosy Boas, Rubber Boas
  Chasiempis Cabanis, 1847 -- valid -- 'Elepaios
  Chasiempis sandwichensis (Gmelin, 1789) -- valid -- 'Elepaio, Elepaio
  Chelonia Brongniart, 1800 -- valid -- Green Sea Turtles
  Chelonia mydas (Linnaeus, 1758) -- valid -- common green sea turtle, Green Sea Turtle, Tortuga-marina verde-del Atlántico
  Cheloniidae Oppel, 1811 -- valid -- marine turtles, modern sea turtles, Sea Turtles
  Chelydra Schweigger, 1812 -- valid -- common snapping turtles, Snapping Turtles
  Chelydra serpentina (Linnaeus, 1758) -- valid -- chélydre serpentine, Common Snapping Turtle, North American Snapping Turtle, Snapping Turtle, Tortuga-lagarto común
  Chelydridae Gray, 1831 -- valid -- Snapping Turtles
  Chen Boie, 1822 -- valid -- Snow Geese
  Chen caerulescens (Linnaeus, 1758) -- valid -- Blue Goose, Ganso blanco, oie des neiges, Snow Goose
  Chen canagica (Sevastianov, 1802) -- valid -- Emperor Goose
  Chen rossii (Cassin, 1861) -- valid -- Ganso de Ross, oie de Ross, Ross' Goose, Ross's Goose
  Chilomeniscus Cope, 1860 -- valid -- Sand Snakes, Sandsnakes
  Chilomeniscus cinctus Cope, 1861 -- invalid -- Banded Sand Snake, Culebra-arenera bandada
  Chionactis Cope, 1860 -- valid -- Shovel-nosed Snakes
  Chionactis occipitalis (Hallowell, 1854) -- valid -- Culebra-nariz de pala del oeste, Western Shovel-nosed Snake
  Chionactis palarostris (Klauber, 1937) -- valid -- Culebra-nariz de pala sonorense, Sonoran Shovel-nosed Snake
  Chionactis saxatilis Funk, 1967 -- invalid -- Mountain Shovel-nosed Snake
  Chlidonias Rafinesque, 1822 -- valid -- Black Terns
  Chloridops S. B. Wilson, 1888 -- valid -- Kona Finches
  Chloridops kona S. B. Wilson, 1888 -- valid -- Kona Grosbeak
  Chloroceryle Kaup, 1848 -- valid -- Green Kingfishers
  Chloroceryle americana (Gmelin, 1788) -- valid -- Green Kingfisher, Martín-pescador verde
  Chlorostilbon Gould, 1853 -- valid -- Emeralds
  Chlorostilbon maugaeus (Audebert & Vieillot, 1801) -- valid -- Puerto Rican Emerald
  Choeronycteris Tschudi, 1844 -- valid -- long-tongued bats
  Choeronycteris mexicana Tschudi, 1844 -- valid -- long-tongued bat, Mexican long-tongued bat, Mexican Long-tongued Bat, Murciélago trompudo
  Chondestes Swainson, 1827 -- valid -- Lark Sparrows
  Chondestes grammacus (Say, 1822) -- valid -- bruant à joues marron, Gorrión arlequín, Lark Sparrow
  Chondrohierax Lesson, 1843 -- valid -- Hook-billed Kites
  Chondrohierax uncinatus (Temminck, 1822) -- valid -- Gavilán pico gancho, Hook-billed Kite, Milan bec-en-croc
  Chondrohierax uncinatus uncinatus (Temminck, 1822) -- valid -- Hook-billed Kite
  Chordeiles Swainson, 1832 -- valid -- Nighthawks
  Chordeiles acutipennis (Hermann, 1783) -- valid -- Chotacabras menor, Lesser Nighthawk
  Chordeiles gundlachii Lawrence, 1857 -- valid -- Antillean Nighthawk
  Chordeiles minor (J. R. Forster, 1771) -- valid -- Chotacabras zumbón, Common Nighthawk, engoulevent d'Amérique
  Chrysemys Gray, 1844 -- valid -- Painted Turtles
  Chrysemys picta (Schneider, 1783) -- valid -- Eastern Painted Turtle, Painted Turtle, tortue peinte, Tortuga pintada
  Ciconiiformes -- valid -- cigognes, Storks
  Cinclidae Sundevall, 1836 -- valid -- Dippers
  Cinclus Borkhausen, 1797 -- valid -- Dippers
  Cinclus mexicanus Swainson, 1827 -- valid -- American Dipper, Mirlo-acuático norteamericano
  Circus Lacepede, 1799 -- valid -- Harriers
  Circus cyaneus (Linnaeus, 1766) -- valid -- Busard Saint-Martin, Gavilán rastrero, Northern Harrier
  Ciridops A. Newton, 1892 -- valid -- Ciridopses
  Ciridops anna (Dole, 1878) -- valid -- Ula-ai-hawane
  Cistothorus Cabanis, 1850 -- valid -- Marsh Wrens
  Cistothorus palustris (A. Wilson, 1810) -- valid -- Chivirín pantanero, Marsh Wren, troglodyte des marais
  Cistothorus platensis (Latham, 1790) -- valid -- Chivirín sabanero, Sedge Wren, troglodyte à bec court
  Clamator Kaup, 1829 -- valid -- Chestnut-winged Cuckoos
  Clamator coromandus (Linnaeus, 1766) -- valid -- Chestnut-winged Cuckoo
  Clangula Leach, 1819 -- valid -- Oldsquaws
  Clangula hyemalis (Linnaeus, 1758) -- valid -- harelde kakawi, Long-tailed Duck, Oldsquaw, Pato cola larga
  Clemmys Ritgen, 1828 -- valid -- marsh turtles, pond turtles, Spotted Turtles
  Clemmys guttata (Schneider, 1792) -- valid -- Spotted Turtle, tortue ponctuée
  Clemmys insculpta (Le Conte, 1830) -- invalid -- ornate box turtle, tortue des bois, wood turtle
  Clemmys marmorata (Baird and Girard, 1852) -- invalid -- Pacific pond turtle, Tortuga marmoleada, western pond turtle
  Clemmys muhlenbergii (Schoepff, 1801) -- invalid -- bog turtle
  Cleptornis Oustalet, 1889 -- valid -- Golden Honeyeaters
  Cleptornis marchei (Oustalet, 1889) -- valid -- Golden Honeyeater, Golden White-eye
  Clethrionomys Tilesius, 1850 -- invalid -- red-backed voles
  Clethrionomys californicus (Merriam, 1890) -- invalid -- Western Red-backed Vole
  Clethrionomys gapperi (Vigors, 1830) -- invalid -- campagnol à dos roux de Gapper, Southern Red-backed Vole
  Clethrionomys rutilus (Pallas, 1779) -- invalid -- Northern Red-backed Vole
  Clonophis Cope, 1889 -- valid -- Kirtland's Snakes
  Clonophis kirtlandii (Kennicott, 1856) -- valid -- Kirtland's Snake
  Clytorhynchus Elliot, 1870 -- valid -- Shrikebills
  Clytorhynchus vitiensis (Hartlaub, 1866) -- valid -- Fiji Shrikebill
  Cnemidophorus Wagler, 1830 -- valid -- Racerunners, Whiptails
  Cnemidophorus burti Taylor, 1938 -- valid -- Canyon Spotted Whiptail, Huico de cañón o punteado de cañón
  Cnemidophorus dixoni Scudday, 1973 -- valid -- Gray-checkered Whiptail
  Cnemidophorus exsanguis Lowe, 1956 -- valid -- Chihuahuan Spotted Whiptail, Huico chihuahuense
  Cnemidophorus flagellicaudus Lowe and Wright, 1964 -- valid -- Gila Spotted Whiptail
  Cnemidophorus gularis Baird and Girard, 1852 -- valid -- Huico texano, Texas Spotted Whiptail
  Cnemidophorus hyperythrus Cope, 1863 -- valid -- Huico garganta anaranjada, Orange-throated Whiptail
  Cnemidophorus inornatus Baird, 1859 -- valid -- Huico adornado, Little Striped Whiptail
  Cnemidophorus laredoensis McKinney, Kay and Anderson, 1973 -- valid -- Huico de Laredo, Laredo Striped Whiptail
  Cnemidophorus lemniscatus (Linnaeus, 1758) -- valid -- Rainbow Whiptail, South American Whiptail
  Cnemidophorus neomexicanus Lowe and Zweifel, 1952 -- valid -- Huico de Nuevo México, New Mexican Whiptail, New Mexico Whiptail
  Cnemidophorus sexlineatus (Linnaeus, 1766) -- valid -- Six-lined Racerunner
  Cnemidophorus sonorae Lowe and Wright, 1964 -- valid -- Huico de Sonora, Sonoran Spotted Whiptail
  Cnemidophorus tesselatus (Say in James, 1823) -- valid -- Checkered Whiptail, Colorado Checkered Whiptail, Common Checkered Whiptail, Huico de cuadros
  Cnemidophorus uniparens Wright and Lowe, 1965 -- valid -- Desert Grassland Whiptail, Huico de pastizal-desértico
  Cnemidophorus velox Springer, 1928 -- valid -- Plateau Striped Whiptail
  Coccothraustes Brisson, 1760 -- valid -- Hawfinches
  Coccothraustes coccothraustes (Linnaeus, 1758) -- valid -- Hawfinch
  Coccothraustes vespertinus (W. Cooper, 1825) -- invalid -- Evening Grosbeak, gros-bec errant, Picogrueso norteño
  Coccyzus Vieillot, 1816 -- valid -- Spotted-tailed Cuckoos
  Coccyzus americanus (Linnaeus, 1758) -- valid -- coulicou à bec jaune, Cuclillo pico amarillo, Yellow-billed Cuckoo
  Coccyzus erythropthalmus (A. Wilson, 1811) -- valid -- Black-billed Cuckoo, coulicou à bec noir, Cuclillo pico negro
  Coccyzus minor (Gmelin, 1788) -- valid -- Cuclillo manglero, Mangrove Cuckoo
  Coereba Vieillot, 1809 -- valid -- Bananaquit, Bananaquits
  Coereba flaveola (Linnaeus, 1758) -- valid -- Bananaquit, Reinita-mielera
  Coerebidae -- valid -- Bananaquit, Bananaquits
  Colaptes Swainson, 1825 -- valid -- Flickers
  Colaptes auratus (Linnaeus, 1758) -- valid -- Carpintero de pechera, Northern Flicker, pic flamboyant
  Coleonyx Gray, 1845 -- valid -- Banded Geckos
  Coleonyx brevis Stejneger, 1893 -- valid -- Cuija texana, Texas Banded Gecko
  Coleonyx reticulatus Davis and Dixon, 1958 -- valid -- Big Bend gecko, Cuija reticulada, Reticulate Banded Gecko, Reticulated Gecko
  Coleonyx switaki (Murphy, 1974) -- valid -- Barefoot Gecko, Cuija descalza, Switak's Banded Gecko
  Coleonyx variegatus (Baird, 1859) -- valid -- Cuija occidental, Western Banded Gecko
  Colibri Spix, 1824 -- valid -- Violet-ears
  Colibri thalassinus (Swainson, 1827) -- valid -- Colibrí oreja violeta, Green Violet-ear, Green Violetear
  Colinus Goldfuss, 1820 -- valid -- Bobwhites
  Colinus virginianus (Linnaeus, 1758) -- valid -- Codorniz cotuí, colin de Virginie, Northern Bobwhite
  Coluber Linnaeus, 1758 -- valid -- Racers
  Coluber constrictor Linnaeus, 1758 -- valid -- Culebra-corredora constrictor, Racer
  Colubridae Oppel, 1811 -- valid -- Colubrids, Typical Snakes
  Columba Linnaeus, 1758 -- valid -- Pigeons
  Columba fasciata Say, 1823 -- invalid -- Band-tailed Pigeon, Paloma de collar
  Columba flavirostris Wagler, 1831 -- invalid -- Paloma morada, Red-billed Pigeon
  Columba inornata Vigors, 1827 -- invalid -- Plain Pigeon
  Columba leucocephala Linnaeus, 1758 -- invalid -- Paloma corona blanca, White-crowned Pigeon
  Columba livia Gmelin, 1789 -- valid -- Common Pigeon, Paloma doméstica, pigeon biset, Rock Dove, Rock Pigeon
  Columba squamosa Bonnaterre, 1792 -- invalid -- Scaly-naped Pigeon
  Columbidae -- valid -- colombes, Doves, pigeons
  Columbiformes -- valid -- colombes, Doves, pigeons, Pigeons
  Columbina Spix, 1825 -- valid -- Ground-Doves
  Columbina inca (Lesson, 1847) -- valid -- Inca Dove, Tórtola cola larga
  Columbina passerina (Linnaeus, 1758) -- valid -- Common Ground Dove, Common Ground-Dove, Tórtola coquita
  Columbina talpacoti (Temminck, 1810) -- valid -- Ruddy Ground Dove, Ruddy Ground-Dove, Tórtola rojiza
  Condylura Illiger, 1811 -- valid -- star-nosed moles
  Condylura cristata (Linnaeus, 1758) -- valid -- condylure étoilé, Star-nosed Mole
  Conepatus Gray, 1837 -- valid -- hog-nosed skunks
  Conepatus leuconotus (Lichtenstein, 1832) -- valid -- American Hog-nosed Skunk, badger skunk, eastern hog-nosed skunk, rooter skunk, Texas skunk, white-backed hog-nosed skunk, Zorrillo-narigón occidental
  Conepatus mesoleucus (Lichtenstein, 1832) -- invalid -- hog-nosed skunk, western hog-nosed skunk, Zorrillo-narigón norteño
  Coniophanes Hallowell in Cope, 1860 -- valid -- Black-striped Snakes
  Coniophanes imperialis (Kennicott in Baird, 1859) -- valid -- Culebra rayas negras, Regal Black-striped Snake
  Contia Baird and Girard, 1853 -- valid -- Sharp-tailed Snakes
  Contia tenuis (Baird and Girard, 1852) -- valid -- Sharp-tailed Snake
  Contopus Cabanis, 1855 -- valid -- Pewees
  Contopus borealis (Swainson, 1832) -- invalid -- Olive-sided Flycatcher, Pibí boreal
  Contopus caribaeus (Orbigny, 1839) -- valid -- Cuban Pewee, Greater Antillean Pewee
  Contopus latirostris (J. Verreaux, 1866) -- valid -- Lesser Antillean Pewee
  Contopus pertinax Cabanis & Heine, 1859 -- valid -- Greater Pewee, Pibí tengofrío
  Contopus sordidulus P. L. Sclater, 1859 -- valid -- Pibí occidental, Western Wood Pewee, Western Wood-Pewee
  Contopus virens (Linnaeus, 1766) -- valid -- Eastern Wood Pewee, Eastern Wood-Pewee, Pibí oriental, pioui de l'est
  Conuropsis Salvadori, 1891 -- valid -- Carolina Parakeets
  Conuropsis carolinensis (Linnaeus, 1758) -- valid -- Carolina Parakeet
  Cophosaurus Troschel, 1852 -- valid -- Greater Earless Lizards
  Cophosaurus texanus Troschel, 1852 -- valid -- Greater Earless Lizard, Lagartija-sorda mayor, Texas Greater Earless Lizard
  Copsychus Wagler, 1827 -- valid -- Shamas
  Copsychus malabaricus (Scopoli, 1786) -- valid -- White-rumped Shama
  Coraciidae -- valid -- Rollers
  Coraciiformes -- valid -- Kingfishers, martins-pêcheurs, Rollers
  Coracina Vieillot, 1816 -- valid -- Cuckoo-Shrikes
  Coracina tenuirostris (Jardine, 1831) -- valid -- Cicadabird, Common Cicadabird
  Coragyps Geoffroy Saint-Hilaire, 1853 -- invalid -- Black Vultures
  Coragyps atratus (Bechstein, 1793) -- valid -- Black Vulture, Urubu noir, Zopilote común
  Corvidae Leach, 1820 -- valid -- corneilles, Crows, geais, Jays, Magpies, pies
  Corvus Linnaeus, 1758 -- valid -- Crows
  Corvus brachyrhynchos C. L. Brehm, 1822 -- valid -- American Crow, corneille d'Amérique, Cuervo americano
  Corvus caurinus S. F. Baird, 1858 -- valid -- Northwestern Crow
  Corvus corax Linnaeus, 1758 -- valid -- Common Raven, Cuervo común, grand corbeau, Northern Raven
  Corvus cryptoleucus Couch, 1854 -- valid -- Chihuahuan Raven, Cuervo llanero
  Corvus hawaiiensis Peale, 1848 -- valid -- 'Alala, Hawaiian Crow
  Corvus imparatus J. L. Peters, 1929 -- valid -- Cuervo tamaulipeco, Mexican Crow, Tamaulipas Crow
  Corvus kubaryi Reichenow, 1885 -- valid -- Mariana Crow, Marianas Crow
  Corvus leucognaphalus Daudin, 1800 -- valid -- White-necked Crow
  Corvus monedula Linnaeus, 1758 -- invalid -- choucas des tours, Eurasian Jackdaw, Western Jackdaw
  Corvus ossifragus A. Wilson, 1812 -- valid -- Fish Crow
  Coturnicops G. R. Gray, 1855 -- valid -- Yellow Rails
  Coturnicops noveboracensis (Gmelin, 1789) -- valid -- Polluela amarilla, râle jaune, Yellow Rail
  Coturnix Bonnaterre, 1791 -- valid -- Asian Quails
  Coturnix chinensis (Linnaeus, 1766) -- valid -- Blue-breasted Quail, King Quail
  Coturnix japonica Temminck & Schlegel, 1849 -- valid -- Japanese Quail
  Cracidae -- valid -- Chachalacas, Curassows, Guans
  Crex Bechstein, 1803 -- valid -- Corn Crakes
  Crex crex (Linnaeus, 1758) -- valid -- Corn Crake
  Crocodilia -- valid -- alligators, caimans, crocodiles, Crocodilians, crocodilo, gavials, jacaré
  Crocodylidae -- valid -- Crocodiles
  Crocodylus Laurenti, 1768 -- valid -- Crocodiles
  Crocodylus acutus Cuvier, 1807 -- valid -- American Crocodile, caiman de la costa, Central American alligator, cocodrilo, Cocodrilo americano, lagarto
  Crocodylus novaeguineae Schmidt, 1928 -- valid -- New Guinea crocodile, New Guinea freshwater crocodile
  Crocodylus porosus Schneider, 1801 -- valid -- Estuarine Crocodile, saltie, saltwater crocodile
  Crotalus Linnaeus, 1758 -- valid -- Rattlesnakes
  Crotalus adamanteus Palisot de Beauvois, 1799 -- valid -- Eastern Diamond-backed Rattlesnake, Eastern Diamondback Rattlesnake
  Crotalus atrox Baird and Girard, 1853 -- valid -- Víbora-cascabel de diamantes, Western Diamond-backed Rattlesnake, Western Diamondback Rattlesnake
  Crotalus cerastes Hallowell, 1854 -- valid -- Sidewinder, Víbora-cascabel cornuda
  Crotalus horridus Linnaeus, 1758 -- valid -- crotale des bois, Timber Rattlesnake
  Crotalus lepidus (Kennicott, 1861) -- valid -- Rock Rattlesnake, Víbora-cascabel variable
  Crotalus mitchellii (Cope, 1861) -- valid -- Speckled Rattlesnake
  Crotalus molossus Baird and Girard, 1853 -- valid -- Black-tailed Rattlesnake, Víbora-cascabel cola negra
  Crotalus pricei Van Denburgh, 1895 -- valid -- Twin-spotted Rattlesnake, Víbora-cascabel motas gemelas
  Crotalus scutulatus (Kennicott, 1861) -- valid -- Mohave Rattlesnake, Mojave Rattlesnake, Víbora-cascabel del Altiplano
  Crotalus tigris Kennicott in Baird, 1859 -- valid -- Tiger Rattlesnake, Víbora-cascabel tigre
  Crotalus viridis (Rafinesque, 1818) -- valid -- Prairie Rattlesnake, Víbora-cascabel occidental, Western Rattlesnake
  Crotalus willardi Meek, 1905 -- valid -- Ridge-nosed Rattlesnake, Víbora-cascabel bigotuda
  Crotaphytus Holbrook, 1842 -- valid -- Collared Lizards
  Crotaphytus collaris (Say in James, 1823) -- valid -- Collared Lizard, Eastern Collared Lizard, Lagartija-de collar común
  Crotaphytus insularis Van Denburgh and Slevin, 1921 -- valid -- Black-collared Lizard, Desert Collared Lizard, Lagartija-de collar negra
  Crotaphytus reticulatus Baird, 1859 -- valid -- Lagartija-de collar reticulada, Reticulate Collared Lizard
  Crotophaga Linnaeus, 1758 -- valid -- Anis
  Crotophaga ani Linnaeus, 1758 -- valid -- Garrapatero pico liso, Smooth-billed Ani
  Crotophaga sulcirostris Swainson, 1827 -- valid -- Garrapatero pijuy, Groove-billed Ani
  Cryptoblepharus Wiegmann, 1834 -- valid -- Snake-eyed Skinks
  Cryptoblepharus boutonii poecilopleurus (Wiegmann, 1834) -- invalid
  Cryptobranchidae Fitzinger, 1826 -- valid -- Giant Salamanders, Hellbenders
  Cryptotis Pomel, 1848 -- valid -- small-eared shrews
  Cryptotis parva (Say, 1823) -- valid -- bee shrew, Least Shrew, little short-tailed shrew, Musaraña-orejillas mínima, North American Least Shrew, small short-tailed shrew
  Ctenosaura Wiegmann, 1828 -- valid -- Spiny-tailed Iguanas
  Ctenosaura pectinata Wiegmann, 1834 -- valid -- Iguana-espinosa mexicana, Mexican Spiny-tailed Iguana, Spiny-tailed Iguana
  Cuculidae -- valid -- Anis, Cuckoos, Roadrunners
  Cuculiformes -- valid -- coucoua, Cuckoos
  Cuculus Linnaeus, 1758 -- valid -- Eurasian Cuckoos
  Cuculus canorus Linnaeus, 1758 -- valid -- Common Cuckoo
  Cuculus fugax Horsfield, 1821 -- valid -- Hodgson's Hawk-Cuckoo
  Cuculus saturatus Blyth, 1843 -- valid -- Oriental Cuckoo
  Cyanocitta Strickland, 1845 -- valid -- Blue Jays
  Cyanocitta cristata (Linnaeus, 1758) -- valid -- Blue Jay, Chara azul, geai bleu
  Cyanocitta stelleri (Gmelin, 1788) -- valid -- Chara crestada, geai de Steller, Steller's Jay
  Cyanocompsa Cabanis, 1861 -- valid -- Blue Buntings
  Cyanocompsa parellina (Bonaparte, 1850) -- valid -- Blue Bunting, Colorín azulnegro
  Cyanocorax F. Boie, 1826 -- valid -- Tufted Jays
  Cyanocorax morio (Wagler, 1829) -- invalid -- Brown Jay, Chara papán
  Cyanocorax yncas (Boddaert, 1783) -- valid -- Chara verde, Green Jay, Inca Jay
  Cyclura Harlan, 1825 -- valid -- Ground Iguanas
  Cyclura cornuta (Bonnaterre, 1789) -- valid -- Horned Ground Iguana
  Cyclura nubila (Gray, 1831) -- valid -- Cuban Ground Iguana
  Cyclura nubila nubila (Gray, 1831) -- valid -- Cuban Ground Iguana
  Cygnus Bechstein, 1803 -- valid -- Swans
  Cygnus buccinator Richardson, 1831 -- valid -- Cisne trompetero, cygne trompette, Trumpeter Swan
  Cygnus columbianus (Ord, 1815) -- valid -- Cisne de tundra, cygne siffleur, Tundra Swan
  Cygnus cygnus (Linnaeus, 1758) -- valid -- Whooper Swan
  Cygnus olor (Gmelin, 1789) -- valid -- cygne tuburculé, Mute Swan
  Cynanthus Swainson, 1827 -- valid -- Broad-billed Hummingbirds
  Cynanthus latirostris Swainson, 1827 -- valid -- Broad-billed Hummingbird, Colibrí pico ancho
  Cynomys Rafinesque, 1817 -- valid -- Prairie Dogs
  Cynomys gunnisoni (Baird, 1855) -- valid -- Gunnison's Prairie Dog
  Cynomys leucurus Merriam, 1890 -- valid -- White-tailed Prairie Dog
  Cynomys ludovicianus (Ord, 1815) -- valid -- Arizona black-tailed prairie dog, Black-tailed Prairie Dog, Perro-llanero cola negra
  Cynomys parvidens J. A. Allen, 1905 -- valid -- Utah Prairie Dog
  Cypseloides Streubel, 1848 -- valid -- Black Swifts
  Cypseloides niger (Gmelin, 1789) -- valid -- American Black Swift, Black Swift, Vencejo negro
  Cyrtodactylus Gray, 1827 -- valid -- Curve-toed Geckos
  Cyrtodactylus scaber (Heyden in Rüppell, 1827) -- invalid
  Cyrtonyx Gould, 1844 -- valid -- Montezuma Quails
  Cyrtonyx montezumae (Vigors, 1830) -- valid -- Codorniz Moctezuma, Montezuma Quail
  Cystophora Nilsson, 1820 -- valid -- hooded seals
  Cystophora cristata (Erxleben, 1777) -- valid -- bladdernose seal, Hooded Seal, phoque à capuchon
  Dasypodidae Gray, 1821 -- valid -- Armadillos
  Dasypus Linnaeus, 1758 -- valid -- Long-nosed Armadillos
  Dasypus novemcinctus Linnaeus, 1758 -- valid -- Armadillo nueve bandas, long-nosed armadillo, Nine-banded Armadillo
  Deirochelys Agassiz, 1857 -- valid -- Chicken Turtles
  Deirochelys reticularia (Latreille in Sonnini and Latreille, 1801) -- valid -- Chicken Turtle
  Delichon Moore, 1854 -- valid -- House-Martins
  Delichon urbica (Linnaeus, 1758) -- invalid -- Common House-Martin
  Delphinapterus Lacépède, 1804 -- valid -- belugas, white whales
  Delphinapterus leucas (Pallas, 1776) -- valid -- Beluga, béluga, white whale
  Delphinidae Gray, 1821 -- valid -- dolphins, killer whales, marine dolphins, pilot whales
  Delphinus Linnaeus, 1758 -- valid -- common dolphins
  Delphinus delphis Linnaeus, 1758 -- valid -- common dolphin, Delfín común, saddle-backed dolphin, Short-beaked Common Dolphin, short-beaked saddle-backed dolphin, Short-beaked Saddleback Dolphin
  Dendragapus Elliot, 1864 -- valid -- Blue Grouse
  Dendragapus canadensis (Linnaeus, 1758) -- invalid -- Spruce Grouse
  Dendragapus obscurus (Say, 1823) -- valid -- Blue Grouse
  Dendrelaphis Boulenger, 1890 -- valid -- Asian Tree Snakes, Bronzebacks
  Dendrelaphis punctulatus (Gray, 1827) -- valid -- Common Bronzeback, Green Tree Snake
  Dendrobates Wagler, 1830 -- valid -- Dart-poison Frogs, Poison Dart Frogs, Poison-dart Frogs
  Dendrobates auratus (Girard, 1855) -- valid -- Dart Poison Frog, Green and Black Dart-poison Frog, Green and Black Poison Dart Frog, Green-and-black Poison Dart Frog
  Dendrobatidae Cope, 1865 -- valid -- Dart-poison Frogs, Dendrobatid Frogs, Dendrobatids, Poison Frogs, Poison-dart Frogs
  Dendrocygna Swainson, 1837 -- valid -- Whistling-Ducks
  Dendrocygna arborea (Linnaeus, 1758) -- valid -- West Indian Whistling Duck, West Indian Whistling-Duck
  Dendrocygna autumnalis (Linnaeus, 1758) -- valid -- Black-bellied Whistling Duck, Black-bellied Whistling-Duck, Pijije ala blanca
  Dendrocygna bicolor (Vieillot, 1816) -- valid -- dendrocygne fauve, Fulvous Whistling Duck, Fulvous Whistling-Duck, Pijije canelo
  Dendroica G. R. Gray, 1842 -- invalid -- Northern Warblers
  Dendroica adelaidae S. F. Baird, 1865 -- invalid -- Adelaide's Warbler
  Dendroica angelae Kepler & Parkes, 1972 -- invalid -- Elfin Woods Warbler, Elfin-woods Warbler
  Dendroica caerulescens (J. F. Gmelin, 1789) -- invalid -- Black-throated Blue Warbler, Chipe azulnegro, paruline bleue
  Dendroica castanea (A. Wilson, 1810) -- invalid -- Bay-breasted Warbler, Chipe castaño, paruline à poitrine baie
  Dendroica cerulea (A. Wilson, 1810) -- invalid -- Cerulean Warbler, Chipe cerúleo, paruline azurée
  Dendroica chrysoparia P. L. Sclater & Salvin, 1860 -- invalid -- Chipe mejilla dorada, Golden-cheeked Warbler, Golden-cheeked Wood Warbler
  Dendroica coronata (Linnaeus, 1766) -- invalid -- Chipe coronado, paruline à croupion jaune, Yellow-rumped Warbler
  Dendroica discolor (Vieillot, 1809) -- invalid -- Chipe de pradera, paruline des prés, Prairie Warbler
  Dendroica dominica (Linnaeus, 1766) -- invalid -- Chipe garganta amarilla, paruline à gorge jaune, Yellow-throated Warbler
  Dendroica fusca (Statius Müller, 1776) -- invalid -- Blackburnian Warbler, Chipe garganta naranja, paruline à gorge orangée
  Dendroica graciae S. F. Baird, 1865 -- invalid -- Chipe ceja amarilla, Grace's Warbler
  Dendroica kirtlandii (S. F. Baird, 1852) -- invalid -- Kirtland's Warbler, Kirtland's Wood Warbler, paruline de Kirtland
  Dendroica magnolia (A. Wilson, 1811) -- invalid -- Chipe de magnolia, Magnolia Warbler, paruline à tête cendrée
  Dendroica nigrescens (J. K. Townsend, 1837) -- invalid -- Black-throated Gray Warbler, Black-throated Grey Warbler, Chipe negrogris, paruline grise
  Dendroica occidentalis (J. K. Townsend, 1837) -- invalid -- Chipe cabeza amarilla, Hermit Warbler, paruline à tête jaune
  Dendroica palmarum (J. F. Gmelin, 1789) -- invalid -- Chipe playero, Palm Warbler, paruline à couronne rousse
  Dendroica pensylvanica (Linnaeus, 1766) -- invalid -- Chestnut-sided Warbler, Chipe flanco castaño, paruline à flancs marron
  Dendroica petechia (Linnaeus, 1766) -- invalid -- American Yellow Warbler, Chipe amarillo, paruline jaune, Yellow Warbler
  Dendroica striata (J. R. Forster, 1772) -- invalid -- Blackpoll Warbler, Chipe gorra negra, paruline rayée
  Dendroica tigrina (J. F. Gmelin, 1789) -- invalid -- Cape May Warbler, Chipe atigrado, paruline tigrée
  Dendroica townsendi (J. K. Townsend, 1837) -- invalid -- Chipe negroamarillo, Townsend's Warbler
  Dendroica virens (J. F. Gmelin, 1789) -- invalid -- Black-throated Green Warbler, Chipe dorso verde, paruline à gorge noire
  Dermochelyidae Fitzinger, 1843 -- valid -- Leatherback Sea Turtles, leatherback turtles
  Dermochelys Blainville, 1816 -- valid -- Leatherback Sea Turtles
  Dermochelys coriacea (Vandelli, 1761) -- valid -- Leatherback, Leatherback Sea Turtle, leatherback turtle, tinglar, tortue luth, Tortuga-marina laúd
  Desmognathus Baird, 1850 -- valid -- Dusky Salamanders, Seal Salamanders
  Desmognathus brimleyorum Stejneger, 1895 -- valid -- Ouachita Dusky Salamander, Ouachita Salamander
  Desmognathus ochrophaeus Cope, 1859 -- valid -- Allegheny Mountain Dusky Salamander, Mountain Dusky Salamander, salamandre des montagnes
  Desmognathus wrighti King, 1936 -- valid -- Pygmy Salamander
  Diadophis Baird and Girard, 1853 -- valid -- Ring-necked Snakes
  Diadophis punctatus (Linnaeus, 1766) -- valid -- couleuvre à collier, Culebra de collar, Ring-necked Snake, Ringneck Snake
  Dicamptodon Strauch, 1870 -- valid -- Pacific Giant Salamanders
  Dicamptodon ensatus (Eschscholtz, 1833) -- valid -- California Giant Salamander
  Dicamptodontidae Tihen, 1958 -- invalid -- Giant Salamanders, Olympic Salamanders, Pacific Giant Salamanders
  Dicrostonyx Gloger, 1841 -- valid -- Collared Lemmings
  Dicrostonyx exsul G. M. Allen, 1919 -- invalid -- St. Lawrence Island collared lemming
  Dicrostonyx groenlandicus (Traill, 1823) -- valid -- Collared Lemming, Greenland Collared Lemming, Nearctic Collared Lemming, Northern Collared Lemming
  Dicrostonyx hudsonius (Pallas, 1778) -- valid -- Labrador Collared Lemming, lemming d'Ungava, Ungava Collared Lemming
  Dicrostonyx kilangmiutak Anderson and Rand, 1945 -- invalid -- Kilangmiutak collared lemming, Victoria collared lemming
  Dicrostonyx nelsoni Merriam, 1900 -- valid -- Nelson's Collared Lemming
  Dicrostonyx richardsoni Merriam, 1900 -- valid -- Richardson's Collared Lemming
  Dicrostonyx rubricatus (Richardson, 1839) -- invalid -- Bering collared lemming, Tundra Collared Lemming
  Dicrostonyx torquatus (Pallas, 1778) -- valid -- Arctic Lemming, Collared Lemming, Palearctic Collared Lemming
  Dicrostonyx unalascensis Merriam, 1900 -- valid -- Aleutian Island Collared Lemming, Unalaska Collared Lemming
  Dicruridae Vigors, 1825 -- valid -- Drongos
  Dicrurus Vieillot, 1816 -- valid -- Drongos
  Dicrurus macrocercus Vieillot, 1817 -- valid -- Black Drongo
  Didelphidae Gray, 1821 -- valid -- American opossums, opossoms
  Didelphis Linnaeus, 1758 -- valid -- large American opossums
  Didelphis virginiana Kerr, 1792 -- valid -- opossum d'Amérique, Tlacuache norteño, Virginia Opossum
  Diomedea Linnaeus, 1758 -- valid -- Albatrosses
  Diomedea albatrus Pallas, 1769 -- invalid -- Albatros rabón, Short-tailed Albatross
  Diomedea cauta Gould, 1841 -- invalid -- Shy Albatross
  Diomedea chlororhynchos Gmelin, 1789 -- invalid -- albatros à nez jaune, Yellow-nosed Albatross
  Diomedea exulans Linnaeus, 1758 -- valid -- Albatros hurleur, Wandering Albatross
  Diomedea melanophris Temminck, 1828 -- invalid -- Black-browed Albatross
  Diomedea nigripes Audubon, 1839 -- invalid -- Albatros pata negra, Black-footed Albatross
  Diomedeidae G. R. Gray, 1840 -- valid -- albatros, Albatrosses
  Diphylla Spix, 1823 -- valid -- hairy-legged vampire bats
  Diphylla ecaudata Spix, 1823 -- valid -- hairy-legged vampire bat, Hairy-legged Vampire Bat, Vampiro pata peluda
  Diploglossus Wiegmann, 1834 -- valid -- Galliwasps
  Diploglossus costatus (Cope, 1862) -- invalid -- Costate Galliwasp
  Diploglossus pleii Duméril and Bibron, 1839 -- valid -- Puerto Rican Galliwasp
  Dipodidae Fischer de Waldheim, 1817 -- valid -- birch mice, Jerboas, jumping mice
  Dipodomys Gray, 1841 -- valid -- Kangaroo Rats
  Dipodomys agilis Gambel, 1848 -- valid -- Agile Kangaroo Rat, Rata-canguro ágil
  Dipodomys californicus Merriam, 1890 -- valid -- California Kangaroo Rat
  Dipodomys compactus True, 1889 -- valid -- Gulf Coast Kangaroo Rat, Rata-canguro de Del Padre
  Dipodomys deserti Stephens, 1887 -- valid -- Desert Kangaroo Rat, Rata-canguro desértica
  Dipodomys elator Merriam, 1894 -- valid -- Texas Kangaroo Rat
  Dipodomys elephantinus (Grinnell, 1919) -- invalid -- Big-eared Kangaroo Rat
  Dipodomys heermanni LeConte, 1853 -- valid -- Heermann's Kangaroo Rat
  Dipodomys heermanni heermanni LeConte, 1853 -- valid -- Heermann's kangaroo rat
  Dipodomys ingens (Merriam, 1904) -- valid -- Giant Kangaroo Rat
  Dipodomys merriami Mearns, 1890 -- valid -- Merriam's Kangaroo Rat, Rata-canguro de Merriam
  Dipodomys microps (Merriam, 1904) -- valid -- Chisel-toothed Kangaroo Rat
  Dipodomys nitratoides Merriam, 1894 -- valid -- Fresno Kangaroo Rat, San Joaquin kangaroo rat, San Joaquin Valley Kangaroo Rat
  Dipodomys ordii Woodhouse, 1853 -- valid -- Ord's Kangaroo Rat, Rata-canguro común
  Dipodomys panamintinus (Merriam, 1894) -- valid -- Panamint Kangaroo Rat
  Dipodomys spectabilis Merriam, 1890 -- valid -- Banner-tailed Kangaroo Rat, Rata-canguro cola de bandera
  Dipodomys stephensi (Merriam, 1907) -- valid -- Stephens' kangaroo rat, Stephens's Kangaroo Rat
  Dipodomys venustus (Merriam, 1904) -- valid -- Narrow-faced Kangaroo Rat
  Dipsosaurus Hallowell, 1854 -- valid -- Desert Iguanas
  Dipsosaurus dorsalis (Baird and Girard, 1852) -- valid -- Desert Iguana, Iguana de desierto
  Dolichonyx Swainson, 1827 -- valid -- Bobolinks
  Dolichonyx oryzivorus (Linnaeus, 1758) -- valid -- Bobolink, goglu des prés, Tordo arrocero
  Drepanidinae -- invalid -- Hawaiian Honeycreepers
  Drepanis Temminck, 1820 -- valid -- Mamos
  Drepanis funerea A. Newton, 1894 -- valid -- Black Mamo
  Drepanis pacifica (J. F. Gmelin, 1788) -- valid -- Hawaii Mamo
  Drymarchon Fitzinger, 1843 -- valid -- Indigo Snakes
  Drymarchon corais (F. Boie, 1827) -- valid -- Indigo Snake
  Drymobius Fitzinger, 1843 -- valid -- Neotropical Racers
  Drymobius margaritiferus (Schlegel, 1837) -- valid -- Central American Speckled Racer, Culebra-corredora de Petatillos
  Dryocopus Boie, 1826 -- valid -- Pileated Woodpecker
  Dryocopus pileatus (Linnaeus, 1758) -- valid -- grand pic, Pileated Woodpecker
  Ducula Hodgson, 1836 -- valid -- Pacific Pigeons
  Ducula oceanica (Lesson & Garnot, 1826) -- valid -- Micronesian Imperial Pigeon, Micronesian Pigeon
  Ducula pacifica (Gmelin, 1789) -- valid -- Pacific Imperial Pigeon, Pacific Pigeon
  Dugong Lacépède, 1799 -- valid -- dugongs
  Dugong dugon (Müller, 1776) -- valid -- Dugong
  Dugongidae Gray, 1821 -- valid -- dugongs, sea cows
  Dumetella C. T. Wood, 1837 -- valid -- Catbirds
  Dumetella carolinensis (Linnaeus, 1766) -- valid -- Gray Catbird, Grey Catbird, Maullador gris, moqueur chat
  Eclectus Wagler, 1832 -- valid -- Eclectus Parrots
  Eclectus roratus (Statius Muller, 1776) -- valid -- Eclectus Parrot
  Ectopistes Swainson, 1827 -- valid -- Passenger Pigeons
  Ectopistes migratorius (Linnaeus, 1766) -- valid -- Passenger Pigeon, tourte voyageuse
  Edentata Vicq-d'Azyr, 1792 -- invalid -- anteaters, armadillos, edentates, sloths
  Egretta T. Forster, 1817 -- valid -- Plumed Egrets
  Egretta eulophotes (Swinhoe, 1860) -- valid -- Aigrette de Chine, Chinese Egret
  Egretta garzetta (Linnaeus, 1766) -- valid -- Aigrette garzette, Little Egret
  Egretta gularis (Bosc, 1792) -- valid -- Aigrette à gorge blanche, Western Reef Heron, Western Reef-Heron
  Egretta intermedia (Wagler, 1829) -- valid -- Intermediate Egret, Plumed Egret
  Egretta rufescens (Gmelin, 1789) -- valid -- Aigrette roussâtre, Garceta rojiza, Reddish Egret
  Egretta sacra (Gmelin, 1789) -- valid -- Pacific Reef Heron, Pacific Reef-Heron
  Egretta thula (Molina, 1782) -- valid -- Aigrette neigeuse, Garceta pie-dorado, Snowy Egret
  Egretta tricolor (Statius Muller, 1776) -- valid -- Aigrette tricolore, Garceta tricolor, Tricolored Heron
  Elaenia Sundevall, 1836 -- valid -- Elaenias
  Elaenia martinica (Linnaeus, 1766) -- valid -- Caribbean Elaenia, Elenia caribeña
  Elanoides Vieillot, 1818 -- valid -- Swallow-tailed Kites
  Elanoides forficatus (Linnaeus, 1758) -- valid -- American Swallow-tailed Kite, Milan à queue fourchue, Milano tijereta, Swallow-tailed Kite
  Elanus Savigny, 1809 -- valid -- Black-shouldered Kites
  Elanus caeruleus (Desfontaines, 1789) -- valid -- Black-shouldered Kite, Black-winged Kite
  Elaphe Fitzinger in Wagler, 1833 -- valid -- Corn Snakes, Fox Snakes, Rat Snakes, Ratsnakes
  Elaphe bairdi (Yarrow, 1880) -- valid -- Baird's Rat Snake, Baird's Ratsnake, Culebra-ratonera de Baird
  Elaphe guttata (Linnaeus, 1766) -- valid -- Corn Snake, Cornsnake, Culebra-ratonera de maiz
  Elaphe obsoleta (Say in James, 1823) -- valid -- Rat Snake, Texas Ratsnake
  Elaphe vulpina (Baird and Girard, 1853) -- valid -- Fox Snake, Foxsnake, Western Foxsnake
  Elapidae F. Boie, 1827 -- valid -- Cobras, Coral Snakes, Coralsnakes, Elapids, Kraits
  Eleutherodactylus Duméril and Bibron, 1841 -- valid -- Chirping Frogs, Coquis, Eleuths, Rain Frogs, Rainfrogs, Robber Frogs
  Eleutherodactylus antillensis (Reinhardt and Lütken, 1863) -- valid -- Antillean Coqui, Antillean Frog
  Eleutherodactylus cochranae Grant, 1932 -- valid -- Whistling Coqui, Whistling Frog
  Eleutherodactylus cooki Grant, 1932 -- valid -- Cook's Robber Frog, Rock Coqui, Rock Frog
  Eleutherodactylus eneidae Rivero, 1959 -- valid -- Mottled Coqui, Mottled Frog
  Eleutherodactylus hedricki Rivero, 1963 -- valid -- Tree-hole Coqui, Tree-hole Frog
  Eleutherodactylus jasperi Drewry and Jones, 1976 -- valid -- Golden Coqui
  Eleutherodactylus lentus (Cope, 1862) -- valid -- Mute Coqui, Mute Frog
  Eleutherodactylus portoricensis Schmidt, 1927 -- valid -- Forest Coqui, Puerto Rican Coqui
  Eleutherodactylus wightmanae Schmidt, 1920 -- valid -- Wrinkled Coqui
  Elgaria coerulea (Wiegmann, 1828) -- valid -- Northern Alligator Lizard
  Elgaria kingii Gray, 1838 -- valid -- Arizona Alligator Lizard, Madrean Alligator Lizard
  Elgaria multicarinata (Blainville, 1835) -- valid -- Lagarto-escorpión del Sur, Southern Alligator Lizard
  Elgaria panamintina (Stebbins, 1958) -- valid -- Panamint Alligator Lizard
  Emballonura Temminck, 1838 -- valid -- sheath-tailed bats
  Emballonura semicaudata (Peale, 1848) -- valid -- Mariana sheath-tailed bat, Polynesian Sheath-tailed Bat, Polynesian sheath-tailed bat, sheath-tailed bat
  Emballonura sulcata Miller, 1911 -- invalid -- Caroline sheath-tailed bat
  Emballonuridae Gervais, 1855 -- valid -- sac-winged bats, sheath-tailed bats
  Emberiza Linnaeus, 1758 -- valid -- Eurasian Buntings
  Emberiza pallasi (Cabanis, 1851) -- valid -- Pallas' Reed-Bunting, Pallas's Bunting, Pallas's Reed Bunting
  Emberiza pusilla Pallas, 1776 -- valid -- Little Bunting
  Emberiza rustica Pallas, 1776 -- valid -- Rustic Bunting
  Emberiza schoeniclus (Linnaeus, 1758) -- valid -- Common Reed Bunting, Common Reed-Bunting, Reed Bunting
  Emberiza variabilis Temminck, 1836 -- valid -- Gray Bunting, Grey Bunting
  Emberizidae -- valid -- American Sparrows, Buntings, Emberizid Finches, New World Sparrows, Towhees
  Emoia Gray, 1845 -- valid -- Emoias
  Emoia adspersa (Steindachner, 1870) -- valid -- Dark-sided Emoia, Dark-sided Skink, Dateline Emoia
  Emoia arnoensis Brown and Marshall, 1953 -- valid -- Arno Emoia, Arno Skink
  Emoia atrocostata (Lesson, 1826) -- valid -- Littoral Emoia, Littoral Skink
  Emoia boettgeri (Sternfeld, 1920) -- valid -- Boettger's Emoia, Boettger's Skink
  Emoia caeruleocauda (De Vis, 1892) -- valid -- Marianas Blue-tailed Emoia, Marianas Blue-tailed Skink, Pacific Blue-tailed Emoia
  Emoia cyanogaster (Lesson, 1826) -- valid -- Blue-bellied Emoia, Blue-bellied Skink
  Emoia cyanura (Lesson, 1826) -- valid -- Azure-tailed Emoia, Azure-tailed skink, Copper-tailed Copper-striped Emoia
  Emoia lawesii (Günther, 1874) -- valid -- Lawes' Emoia, Lawes' Skink, Pili Oua
  Emoia mivarti (Boulenger, 1887) -- valid -- Mivart's Emoia, Mivart's Skink
  Emoia nigra (Jacquinot and Guichenot, 1853) -- valid -- Black Emoia, Black Skink
  Emoia ponapea Kiester, 1982 -- valid -- Ponape Forest Emoia, Ponape Forest Skink
  Emoia samoensis (Duméril in Duméril and Duméril, 1851) -- valid -- Samoan Emoia, Samoan Skink
  Emoia slevini Brown and Falanruw, 1972 -- valid -- Marianas Emoia, Slevin's Emoia, Slevin's Skink
  Empidonax Cabanis, 1855 -- valid -- Empidonax Flycatchers
  Empidonax alnorum Brewster, 1895 -- valid -- Alder Flycatcher, Mosquero ailero, moucherolle des aulnes
  Empidonax difficilis S. F. Baird, 1858 -- valid -- Mosquero californiano, Pacific-slope Flycatcher, Western Flycatcher
  Empidonax flaviventris (W. M. Baird & S. F. Baird, 1843) -- valid -- Mosquero vientre amarillo, moucherolle à ventre jaune, Yellow-bellied Flycatcher
  Empidonax fulvifrons (Giraud, 1841) -- valid -- Buff-breasted Flycatcher, Mosquero pecho leonado
  Empidonax minimus (W. M. Baird & S. F. Baird, 1843) -- valid -- Least Flycatcher, Mosquero mímimo, moucherolle tchébec
  Empidonax oberholseri A. R. Phillips, 1939 -- valid -- Dusky Flycatcher, Mosquero oscuro
  Empidonax traillii (Audubon, 1828) -- valid -- Mosquero saucero, moucherolle des saules, Willow Flycatcher
  Empidonax virescens (Vieillot, 1818) -- valid -- Acadian Flycatcher, Mosquero verdoso, moucherolle vert
  Empidonax wrightii S. F. Baird, 1858 -- valid -- Gray Flycatcher, Grey Flycatcher, Mosquero gris
  Empidonomus Cabanis & Heine, 1859 -- valid -- Variegated Flycatchers
  Empidonomus varius (Vieillot, 1818) -- valid -- Variegated Flycatcher
  Emydidae Rafinesque, 1815 -- valid -- Emydid Turtles, pond turtles, terrapins
  Emydoidea Gray, 1870 -- valid -- Blanding's Turtles
  Emydoidea blandingii (Holbrook, 1838) -- valid -- Blanding's Turtle, tortue mouchetée
  Enhydra Fleming, 1822 -- valid -- sea otters
  Enhydra lutris (Linnaeus, 1758) -- valid -- Nutria marina, Sea Otter
  Enhydra lutris lutris (Linnaeus, 1758) -- valid -- sea otter
  Epicrates Wagler, 1830 -- valid -- Greater Antillean Boas, Rainbow Boas, West Indian Boas
  Epicrates inornatus (Reinhardt, 1843) -- invalid -- Puerto Rican Boa
  Epicrates monensis Zenneck, 1898 -- invalid -- Mona Boa
  Eptesicus Rafinesque, 1820 -- valid -- big brown bats
  Eptesicus fuscus (Palisot de Beauvois, 1796) -- valid -- big brown bat, Big Brown Bat, grande chauve-souris brune, Murciélago-moreno norteamericano
  Equidae Gray, 1821 -- valid -- Asses, Horses, Zebras
  Equus Linnaeus, 1758 -- valid -- Horses
  Equus asinus Linnaeus, 1758 -- valid -- Ass, burro, Donkey, feral burro, Wild Ass
  Equus caballus Linnaeus, 1758 -- valid -- feral horse, Horse
  Eremophila F. Boie, 1828 -- valid -- Horned Larks
  Erethizon F. Cuvier, 1823 -- valid -- New World porcupines
  Erethizon dorsatum (Linnaeus, 1758) -- invalid -- common porcupine, porc-épic d'Amérique, porcupine, Puercoespín norteamericano
  Erethizontidae Bonaparte, 1845 -- valid -- New World porcupines
  Eretmochelys Fitzinger, 1843 -- valid -- Hawksbill Sea Turtles
  Eretmochelys imbricata (Linnaeus, 1766) -- valid -- carey, Hawksbill, Hawksbill Sea Turtle, Tortuga-marina de carey
  Erignathus Gill, 1866 -- valid -- bearded seals
  Erophylla Miller, 1906 -- valid -- brown flower bats
  Erophylla sezekorni (Gundlach, 1861) -- valid -- buffy flower bat, Buffy Flower Bat
  Erythrura Swainson, 1837 -- valid -- Parrot-Finches
  Erythrura trichroa (Kittlitz, 1833) -- valid -- Blue-faced Parrot-Finch
  Eschrichtiidae Ellerman and Morrison-Scott, 1951 -- valid -- gray whales, grey whales
  Eschrichtius Gray, 1864 -- valid -- gray whales, grey whales
  Eschrichtius robustus (Lilljeborg, 1861) -- valid -- Ballena gris, Gray Whale, grey whale
  Estrilda Swainson, 1827 -- valid -- Waxbills
  Estrilda astrild (Linnaeus, 1758) -- valid -- Common Waxbill
  Estrilda caerulescens (Vieillot, 1817) -- valid -- Lavender Waxbill
  Estrilda melpoda (Vieillot, 1817) -- valid -- Orange-cheeked Waxbill
  Estrilda troglodytes (Lichtenstein, 1823) -- valid -- Black-rumped Waxbill
  Estrildidae Bonaparte, 1850 -- valid -- Munias, Waxbills
  Euderma H. Allen, 1892 -- valid -- spotted bats
  Euderma maculatum (J. A. Allen, 1891) -- valid -- Murciélago pinto, Spotted Bat, spotted bat
  Eudocimus Wagler, 1832 -- valid -- White Ibises
  Eudocimus albus (Linnaeus, 1758) -- valid -- American White Ibis, Ibis blanc, Ibis blanco, White Ibis
  Eudocimus ruber (Linnaeus, 1758) -- valid -- Ibis rouge, Scarlet Ibis
  Eugenes Gould, 1856 -- valid -- Magnificent Hummingbirds
  Eugenes fulgens (Swainson, 1827) -- valid -- Colibrí magnífico, Magnificent Hummingbird
  Eugongylus Fitzinger, 1843 -- valid -- Mastiff Skinks, Short-legged Giant Skinks
  Eugongylus albofasciolatus (Günther, 1872) -- valid -- White-banded Giant Skink, White-banded Mastiff Skink
  Eugongylus mentovarius Boettger, 1895 -- valid -- Odd-chinned Giant Skink, Odd-chinned Mastiff Skink
  Eulampis Boie, 1831 -- valid -- Caribs
  Eulampis holosericeus (Linnaeus, 1758) -- valid -- Green-throated Carib
  Eumeces Wiegmann, 1834 -- valid -- Eumeces, Holarctic Skinks
  Eumeces anthracinus (Baird, 1850) -- valid -- Coal Skink
  Eumeces callicephalus Bocourt, 1879 -- valid -- Mountain Skink
  Eumeces egregius (Baird, 1859) -- valid -- Mole Skink
  Eumeces fasciatus (Linnaeus, 1758) -- valid -- Five-lined Skink
  Eumeces gilberti Van Denburgh, 1896 -- valid -- Eslizón de Gilbert, Gilbert's Skink
  Eumeces inexpectatus Taylor, 1932 -- valid -- Southeastern Five-lined Skink
  Eumeces laticeps (Schneider, 1801) -- valid -- Broad-headed Skink
  Eumeces multivirgatus (Hallowell, 1857) -- valid -- Eslizón muchas líneas, Many-lined Skink
  Eumeces obsoletus (Baird and Girard, 1852) -- valid -- Eslizón de la Gran Planicie, Great Plains Skink
  Eumeces septentrionalis (Baird, 1859) -- valid -- Prairie Skink
  Eumeces skiltonianus (Baird and Girard, 1852) -- valid -- Eslizón occidental, Western Skink
  Eumeces tetragrammus (Baird, 1859) -- valid -- Eslizón cuatro líneas, Four-lined Skink
  Eumeces tetragrammus tetragrammus (Baird, 1859) -- valid -- Four-lined Skink, Long-lined Skink, Short-lined Skink
  Eumetopias Gill, 1866 -- valid -- northern sea lions
  Eumetopias jubatus (Schreber, 1776) -- valid -- northern sea lion, Steller Sea Lion, steller sealion, Steller's sea lion
  Eumops Miller, 1906 -- valid -- mastiff-bats
  Eumops glaucinus (Wagner, 1843) -- valid -- Murciélago-con bonete de Wagner, Wagner's Bonneted Bat, Wagner's mastiff-bat
  Eumops perotis (Schinz, 1821) -- valid -- Greater Bonneted Bat, Murciélago-con bonete mayor, Western Bonneted Bat, western mastiff-bat
  Eumops underwoodi Goodwin, 1940 -- valid -- Murciélago-con bonete de Underwood, Underwood's Bonneted Bat, Underwood's mastiff-bat
  Euphagus Cassin, 1867 -- valid -- American Blackbirds
  Euphagus carolinus (Statius Muller, 1776) -- valid -- quiscale rouilleux, Rusty Blackbird, Tordo canadiense
  Euphagus cyanocephalus (Wagler, 1829) -- valid -- Brewer's Blackbird, quiscale de Brewer, Tordo ojo amarillo
  Euphonia Desmarest, 1806 -- valid -- Euphonias
  Euphonia musica (J. F. Gmelin, 1789) -- valid -- Antillean Euphonia
  Euplectes Swainson, 1829 -- valid -- Bishops
  Euplectes afer (Gmelin, 1789) -- valid -- Yellow-crowned Bishop
  Euplectes orix (Linnaeus, 1758) -- valid -- Red Bishop, Southern Red Bishop
  Euptilotis Gould, 1858 -- valid -- Eared Trogons
  Euptilotis neoxenus (Gould, 1838) -- valid -- Eared Quetzal, Eared Trogon, Trogón orejón
  Eurycea Rafinesque, 1822 -- valid -- Brook Salamanders
  Eurycea aquatica Rose and Bush, 1963 -- valid -- Brown-backed Salamander, Dark-sided Salamander
  Eurycea bislineata (Green, 1818) -- valid -- Northern Two-lined Salamander, salamandre à deux lignes, Two-lined Salamander
  Eurycea longicauda (Green, 1818) -- valid -- Long-tailed Salamander
  Eurycea nana Bishop, 1941 -- valid -- San Marcos Salamander
  Eurycea tridentifera Mitchell and Reddell, 1965 -- valid -- Comal Blind Salamander
  Eurynorhynchus Nilsson, 1821 -- valid -- Spoonbill Sandpipers
  Eurynorhynchus pygmeus (Linnaeus, 1758) -- valid -- Bécasseau spatule, Spoon-billed Sandpiper, Spoonbill Sandpiper
  Eurystomus Vieillot, 1816 -- valid -- Rollers
  Eurystomus orientalis (Linnaeus, 1766) -- valid -- Dollar Bird, Dollar Roller, Dollarbird, Oriental Dollarbird
  Euthlypis Cabanis, 1850 -- invalid -- Fan-tailed Warblers
  Euthlypis lachrymosa (Bonaparte, 1850) -- invalid -- Chipe de roca, Fan-tailed Warbler
  Falco Linnaeus, 1758 -- valid -- Falcons
  Falco columbarius Linnaeus, 1758 -- valid -- Faucon émerillon, Halcón esmerejón, Merlin
  Falco femoralis Temminck, 1822 -- valid -- Aplomado Falcon, Faucon aplomado, Halcón fajado
  Falco mexicanus Schlegel, 1850 -- valid -- Faucon des prairies, Halcón mexicano, Prairie Falcon
  Falco peregrinus Tunstall, 1771 -- valid -- Faucon pèlerin, faucon pélerin, Halcón peregrino, Peregrine Falcon
  Falco rusticolus Linnaeus, 1758 -- valid -- Faucon gerfaut, Gyrfalcon
  Falco sparverius Linnaeus, 1758 -- valid -- American Kestrel, Cernícalo americano, Crécerelle d'Amérique
  Falco subbuteo Linnaeus, 1758 -- valid -- Eurasian Hobby, Faucon hobereau, Northern Hobby
  Falco tinnunculus Linnaeus, 1758 -- valid -- Common Kestrel, Eurasian Kestrel, Faucon crécerelle
  Falconidae Leach, 1820 -- valid -- Caracaras, Falcons
  Falconiformes -- valid -- Falconiforms, Falcons, faucons
  Farancia Gray, 1842 -- valid -- Mud Snakes, Mudsnakes, Rainbow Snakes
  Farancia abacura (Holbrook, 1836) -- valid -- Mud Snake, Mudsnake
  Farancia erytrogramma (Palisot de Beauvois in Sonnini and Latreille, 1801) -- valid -- Rainbow Snake
  Felidae Fischer de Waldheim, 1817 -- valid -- cats
  Felis Linnaeus, 1758 -- valid -- small cats
  Felis concolor Linnaeus, 1771 -- invalid -- mountain lion
  Felis concolor concolor Linnaeus, 1771 -- invalid -- mountain lion
  Felis pardalis Linnaeus, 1758 -- invalid -- ocelot
  Felis silvestris Schreber, 1777 -- valid -- wild cat, Wildcat
  Felis wiedii Schinz, 1821 -- invalid -- margay
  Felis yaguarondi Lacépède, 1809 -- invalid -- jaguarundi
  Feresa Gray, 1870 -- valid -- pygmy killer whales
  Feresa attenuata Gray, 1874 -- valid -- Orca pigmea, Pygmy Killer Whale
  Ficedula Brisson, 1760 -- valid
  Ficedula narcissina (Temminck, 1836) -- valid -- Narcissus Flycatcher
  Ficedula parva (Bechstein, 1792) -- valid -- Red-breasted Flycatcher
  Ficimia Gray, 1849 -- valid -- Mexican Hook-nosed Snakes, Southern Hook-nosed Snakes
  Ficimia streckeri Taylor, 1931 -- valid -- Culebra-naricilla mexicana, Mexican Hook-nosed Snake, Tamaulipan Hook-nosed Snake
  Foulehaio Reichenbach, 1852 -- valid -- Wattled Honeyeaters
  Foulehaio carunculata (Gmelin, 1788) -- invalid -- Wattled Honeyeater
  Francolinus Stephens, 1819 -- valid -- Francolins
  Francolinus erckelii (Ruppell, 1835) -- valid -- Erckel's Francolin
  Francolinus francolinus (Linnaeus, 1766) -- valid -- Black Francolin
  Francolinus pondicerianus (Gmelin, 1789) -- valid -- Gray Francolin, Grey Francolin
  Fratercula Brisson, 1760 -- valid -- Puffins
  Fratercula arctica (Linnaeus, 1758) -- valid -- Atlantic Puffin, Macareux moine
  Fratercula corniculata (J. F. Naumann, 1821) -- valid -- Horned Puffin, Macareux cornu
  Fregata Lacepede, 1799 -- valid -- Frigatebirds
  Fregata ariel (G. R. Gray, 1845) -- valid -- Frégate ariel, Lesser Frigatebird
  Fregata magnificens Mathews, 1914 -- valid -- Fragata magnífica, Frégate superbe, Magnificent Frigatebird
  Fregata minor (Gmelin, 1789) -- valid -- Fragata pelágica, Frégate du Pacifique, Great Frigatebird
  Fregatidae Degland & Gerbe, 1867 -- valid -- Frigatebirds
  Fringilla Linnaeus, 1758 -- valid -- Bramblings, Chaffinches
  Fringilla coelebs Linnaeus, 1758 -- valid -- Common Chaffinch
  Fringilla montifringilla Linnaeus, 1758 -- valid -- Brambling
  Fringillidae Leach, 1820 -- valid -- Finches, gros-becs, Hawaiian Honeycreepers, moineaux, Old World Finches, roselins
  Fringillinae Leach, 1820 -- invalid -- Bramblings, Chaffinches
  Fulica Linnaeus, 1758 -- valid -- Coots
  Fulica americana Gmelin, 1789 -- valid -- American Coot, foulque d'Amérique, Gallareta americana
  Fulica atra Linnaeus, 1758 -- valid -- Eurasian Coot
  Fulica caribaea Ridgway, 1884 -- valid -- Caribbean Coot
  Gallicolumba Heck, 1849 -- valid -- Island Ground-Doves
  Gallicolumba canifrons (Hartlaub & Finsch, 1872) -- valid -- Palau Ground Dove, Palau Ground-Dove
  Gallicolumba kubaryi (Finsch, 1880) -- valid -- Truk Island Ground-Dove, White-fronted Ground Dove
  Gallicolumba stairi (G. R. Gray, 1856) -- valid -- Friendly Ground-Dove, Tongan Ground Dove
  Gallicolumba xanthonura (Temminck, 1823) -- valid -- White-throated Ground Dove, White-throated Ground-Dove
  Galliformes -- valid -- Fowls, gallinacées, Gallinaceous Birds, volaille
  Gallinago Brisson, 1760 -- valid -- Snipes
  Gallinago gallinago (Linnaeus, 1758) -- valid -- Agachona común, Bécassine des marais, Common Snipe
  Gallinago hardwickii (J. E. Gray, 1831) -- valid -- Japanese Snipe, Latham's Snipe
  Gallinago megala Swinhoe, 1861 -- valid -- Swinhoe's Snipe
  Gallinago stenura (Bonaparte, 1831) -- valid -- Bécassine à queue pointue, Pin-tailed Snipe
  Gallinula Brisson, 1760 -- valid -- Moorhens
  Gallinula chloropus (Linnaeus, 1758) -- valid -- Common Moorhen, Gallineta frente roja, gallinule poule-d'eau
  Gallus Brisson, 1760 -- valid -- Junglefowl
  Gallus gallus (Linnaeus, 1758) -- valid -- Red Junglefowl
  Gambelia Baird, 1859 -- valid -- Leopard Lizards
  Gambelia silus (Stejneger, 1890) -- invalid -- Blunt-nosed Leopard Lizard
  Gambelia wislizenii (Baird and Girard, 1852) -- valid -- Lagartija-leopardo narigona, Long-nosed Leopard Lizard
  Garrulax Lesson, 1831 -- valid -- Laughing Thrushes
  Garrulax canorus (Linnaeus, 1758) -- valid -- Hwamei, Melodious Laughing Thrush
  Garrulax pectoralis (Gould, 1836) -- valid -- Greater Necklaced Laughing Thrush, Greater Necklaced Laughingthrush
  Gavia J. R. Forster, 1788 -- valid -- Loons
  Gavia adamsii (G. R. Gray, 1859) -- valid -- Colimbo de Adams, Plongeon à bec blanc, White-billed Diver, Yellow-billed Loon
  Gavia arctica (Linnaeus, 1758) -- valid -- Arctic Loon, Black-throated Loon, Plongeon arctique
  Gavia immer (Brunnich, 1764) -- valid -- Colimbo mayor, Common Loon, Great Northern Diver, Great Northern Loon, Plongeon huard
  Gavia pacifica (Lawrence, 1858) -- valid -- Colimbo pacífico, Pacific Diver, Pacific Loon, Plongeon du Pacifique
  Gavia stellata (Pontoppidan, 1763) -- valid -- Colimbo menor, Plongeon catmarin, Red-throated Diver, Red-throated Loon
  Gaviidae Allen, 1897 -- valid -- Divers, Loons
  Gaviiformes -- valid -- huarts, Loons
  Gehyra Gray, 1834 -- valid -- Dtellas, Web-toed Geckos
  Gehyra brevipalmata (W. Peters, 1874) -- valid -- Palauan Web-toed Gecko
  Gehyra mutilata (Wiegmann, 1834) -- valid -- Geco plano, Mutilating Gecko, Stump-toed Gecko
  Gehyra oceanica (Lesson, 1830) -- valid -- Big Tree Gecko, Oceanic Gecko
  Gehyra papuana Meyer, 1874 -- valid -- Papuan Web-toed Gecko
  Gekko Laurenti, 1768 -- valid -- Gekkos, Tropical Asian Geckos, Typical Geckos
  Gekko gecko (Linnaeus, 1758) -- valid -- Tokay Gecko, Tokay Gekko
  Gekko vittatus Houttuyn, 1782 -- valid -- Striped Gecko, Striped Gekko
  Gekkonidae -- valid -- Geckos
  Geochelone Fitzinger, 1835 -- valid -- Geochelone Tortoises, geoclelone tortoises, typical tortoises
  Geochelone carbonaria (Spix, 1824) -- invalid -- Red-footed Tortoise
  Geococcyx Wagler, 1831 -- valid -- Roadrunners
  Geococcyx californianus (Lesson, 1829) -- valid -- Correcaminos norteño, Greater Roadrunner
  Geomyidae Bonaparte, 1845 -- valid -- Pocket Gophers
  Geomys Rafinesque, 1817 -- valid -- Eastern Pocket Gophers
  Geomys arenarius Merriam, 1895 -- valid -- Desert Pocket Gopher, Tuza arenera
  Geomys bursarius (Shaw, 1800) -- valid -- Plains Pocket Gopher
  Geomys personatus True, 1889 -- valid -- Texas Pocket Gopher, Tuza texana
  Geomys pinetis Rafinesque, 1817 -- valid -- Southeastern Pocket Gopher
  Geopelia Swainson, 1837 -- valid -- Zebra Doves
  Geopelia striata (Linnaeus, 1766) -- valid -- Zebra Dove
  Geothlypis Cabanis, 1847 -- valid -- Yellowthroats
  Geothlypis poliocephala S. F. Baird, 1865 -- valid -- Gray-crowned Yellowthroat, Grey-crowned Yellowthroat, Mascarita pico grueso, Paruline à calotte grise
  Geothlypis trichas (Linnaeus, 1766) -- valid -- Common Yellowthroat, Mascarita común, Paruline masquée
  Geotrygon Gosse, 1847 -- valid -- Quail-Doves
  Geotrygon chrysia Bonaparte, 1855 -- valid -- Key West Quail-Dove
  Geotrygon montana (Linnaeus, 1758) -- valid -- Paloma-perdiz rojiza, Ruddy Quail-Dove
  Geotrygon mystacea (Temminck, 1811) -- valid -- Bridled Quail-Dove
  Gerrhonotus Wiegmann, 1828 -- valid -- Alligator Lizards
  Gerrhonotus liocephalus Wiegmann, 1828 -- valid -- Lagarto-escorpión texano, Smooth-headed Alligator Lizard, Texas Alligator Lizard
  Glareola Brisson, 1760 -- valid -- Pratincoles
  Glareola maldivarum J. R. Forster, 1795 -- valid -- Glaréole orientale, Oriental Pratincole
  Glareolidae Brehm, 1831 -- valid -- Coursers, Pratincoles
  Glaucidium Boie, 1826 -- valid -- Pygmy-Owls
  Glaucidium brasilianum (Gmelin, 1788) -- valid -- Ferruginous Pygmy Owl, Ferruginous Pygmy-Owl, Tecolote bajeño
  Glaucidium gnoma Wagler, 1832 -- valid -- Mountain Pygmy Owl, Northern Pygmy-Owl, Tecolote serrano
  Glaucomys Thomas, 1908 -- valid -- American flying squirrels, New World Flying Squirrels
  Glaucomys sabrinus (Shaw, 1801) -- valid -- grand polatouche, Northern Flying Squirrel
  Glaucomys sabrinus sabrinus (Shaw, 1801) -- valid -- Hudson Bay flying squirrel, northern flying squirrel
  Glaucomys volans (Linnaeus, 1758) -- valid -- Ardilla-voladora del sur, petit polatouche, Southern Flying Squirrel
  Globicephala Lesson, 1828 -- valid -- pilot whales
  Globicephala macrorhynchus Gray, 1846 -- valid -- Short-finned Pilot Whale
  Globicephala melaena (Traill, 1809) -- invalid -- long-finned pilot whale
  Gonatodes Fitzinger, 1843 -- valid -- American Bent-toed Geckos, Bent-toed Geckos
  Gonatodes albogularis (Duméril and Bibron, 1836) -- valid -- Geco cabeza amarilla, Yellow-headed Gecko
  Gopherus Rafinesque, 1832 -- valid -- Gopher Tortoises, North American Tortoises
  Gopherus agassizii (Cooper, 1861) -- valid -- Agassiz's Desert Tortoise, Desert Tortoise, Mohave Desert Tortoise, Mojave Desert Tortoise
  Gopherus berlandieri (Agassiz, 1857) -- valid -- Berlandier's Tortoise, Galápago tamaulipeco, Texas Tortoise
  Gopherus polyphemus (Daudin, 1801) -- valid -- Gopher Tortoise
  Gracula Linnaeus, 1758 -- valid -- Hill Mynas
  Gracula religiosa Linnaeus, 1758 -- valid -- Common Hill Myna, Hill Myna
  Grampus Gray, 1828 -- valid -- grampus
  Grampus griseus (G. Cuvier, 1812) -- valid -- Delfín chato, grampus, Risso's Dolphin
  Graptemys Agassiz, 1857 -- valid -- Map Turtles
  Graptemys barbouri Carr and Marchand, 1942 -- valid -- Barbour's Map Turtle
  Graptemys caglei Haynes and McKown, 1974 -- valid -- Cagle's Map Turtle
  Graptemys flavimaculata Cagle, 1954 -- valid -- sawback turtle, Yellow-blotched Map Turtle, Yellow-blotched Sawback
  Graptemys geographica (Le Sueur, 1817) -- valid -- Common Map Turtle, Northern Map Turtle, tortue géographique
  Graptemys kohnii (Baur, 1890) -- invalid -- Mississippi Map Turtle
  Graptemys nigrinoda Cagle, 1954 -- valid -- Black-knobbed Map Turtle, Black-knobbed Sawback
  Graptemys oculifera (Baur, 1890) -- valid -- Ringed Map Turtle, Ringed Sawback, ringed sawback turtle
  Graptemys pseudogeographica (Gray, 1831) -- valid -- False Map Turtle
  Graptemys pulchra Baur, 1893 -- valid -- Alabama Map Turtle
  Graptemys versa Stejneger, 1925 -- valid -- Texas Map Turtle
  Gruidae -- valid -- Cranes
  Gruiformes -- valid -- Cranes, grues, Rails, râles
  Grus Brisson, 1760 -- valid -- Cranes
  Grus americana (Linnaeus, 1758) -- valid -- Grulla blanca, Whooping Crane
  Grus canadensis (Linnaeus, 1758) -- valid -- grue du Canada, Grulla gris, Sandhill Crane
  Grus grus (Linnaeus, 1758) -- valid -- Common Crane
  Guiraca Swainson, 1827 -- invalid -- Blue Grosbeaks
  Guiraca caerulea (Linnaeus, 1758) -- invalid -- Blue Grosbeak, guicara bleu, Picogordo azul
  Gulo Pallas, 1780 -- valid -- wolverines
  Gyalopion Cope, 1860 -- valid -- Hook-nosed Snakes, Western Hook-nosed Snakes
  Gyalopion canum Cope, 1860 -- valid -- Chihuahuan Hook-nosed Snake, Culebra-nariz ganchuda de Chihuahua, Western Hook-nosed Snake
  Gyalopion quadrangularis (Günther, 1893) -- invalid
  Gygis Wagler, 1832 -- valid -- White Terns
  Gygis alba (Sparrman, 1786) -- valid -- Angel Tern, Gygis blanche, White Tern
  Gymnogyps Lesson, 1842 -- valid -- Condors
  Gymnogyps californianus (Shaw, 1797) -- valid -- California Condor, Cóndor californiano, Condor de Californie
  Gymnomyza Reichenow, 1914 -- valid -- Maos
  Gymnomyza samoensis (Hombron & Jacquinot, 1841) -- valid -- Mao
  Gymnorhinus Wied-Neuwied, 1841 -- valid -- Pinyon Jay
  Gymnorhinus cyanocephalus Wied-Neuwied, 1841 -- valid -- Chara piñonera, Pinyon Jay
  Gyrinophilus Cope, 1869 -- valid -- Cave Salamanders, Spring Salamanders
  Haematopodidae -- valid -- huîtriers, Oystercatchers
  Haematopus Linnaeus, 1758 -- valid -- Oystercatchers
  Haematopus bachmani Audubon, 1838 -- valid -- American Black Oystercatcher, Black Oystercatcher, Huîtrier de Bachman, Ostrero negro
  Haematopus ostralegus Linnaeus, 1758 -- valid -- Eurasian Oystercatcher, Huîtrier pie
  Haematopus palliatus Temminck, 1820 -- valid -- American Oystercatcher, Huîtrier d'Amérique, Ostrero americano
  Halcyon Swainson, 1821 -- valid -- Blue Kingfishers
  Halcyon chloris (Boddaert, 1783) -- invalid -- White-collared Kingfisher
  Halcyon cinnamonina Swainson, 1821 -- invalid -- Micronesian Kingfisher
  Haliaeetus Savigny, 1809 -- valid -- Fish Eagles
  Haliaeetus albicilla (Linnaeus, 1758) -- valid -- Pygargue à queue blanche, White-tailed Eagle
  Haliaeetus albicilla albicilla (Linnaeus, 1758) -- valid -- White-tailed Eagle
  Haliaeetus leucocephalus (Linnaeus, 1766) -- valid -- Águila cabeza blanca, Bald Eagle, Pygargue à tête blanche
  Haliaeetus pelagicus (Pallas, 1811) -- valid -- Pygargue empereur, Steller's Sea Eagle, Steller's Sea-Eagle
  Halichoerus Nilsson, 1820 -- valid -- gray seals
  Halichoerus grypus (Fabricius, 1791) -- valid -- Atlantic gray seal, Atlantic seal, Baltic gray seal, Gray Seal, horsehead, phoque gris
  Heliomaster Bonaparte, 1850 -- valid -- Starthroats
  Heliomaster constantii (Delattre, 1843) -- valid -- Colibrí picudo, Plain-capped Starthroat
  Helmitheros Rafinesque, 1819 -- valid -- Worm-eating Warblers
  Helmitheros vermivorus (J. F. Gmelin, 1789) -- invalid -- Chipe gusanero, paruline vermivore, Worm-eating Warbler
  Heloderma Wiegmann, 1829 -- valid -- Beaded Lizards, Gila Monsters
  Heloderma suspectum Cope, 1869 -- valid -- Gila Monster, Lagarto de Gila
  Helodermatidae Gray, 1837 -- valid -- Beaded Lizards, Gila Monsters, Venomous Lizards
  Hemidactylus Gray, 1825 -- valid -- Half-toed Geckos, House Geckos
  Hemidactylus brookii Gray, 1845 -- valid -- Brook's House Gecko
  Hemidactylus frenatus Schlegel, 1836 -- valid -- Bridled House Gecko, Common House Gecko, Geco-casero bocón
  Hemidactylus garnotii Duméril and Bibron, 1836 -- valid -- Fox Gecko, Indo-Pacific Gecko, Indo-Pacific House Gecko, Indopacific Gecko
  Hemidactylus mabouia (Moreau De Jonnès, 1818) -- valid -- Afro-American House Gecko, Afroamerican house gecko, Cosmopolitan House Gecko, Geco-casero tropical, Wood Slave
  Hemidactylus turcicus (Linnaeus, 1758) -- valid -- Geco-casero del Mediterráneo, Mediterranean Gecko, Mediterranean Gekko, Mediterranean House Gecko
  Hemignathus M. H. K. Lichtenstein, 1839 -- valid -- 'Amakihis
  Hemignathus lucidus M. H. K. Lichtenstein, 1839 -- valid -- Honeycreeper, Nukupu'u, Nukupuu
  Hemignathus munroi Pratt, 1979 -- invalid -- 'Akiapola'au, Akiapolaau
  Hemignathus obscurus (J. F. Gmelin, 1788) -- invalid -- Hawaiian 'Akialoa, Lesser Akialoa
  Hemignathus parvus (Stejneger, 1887) -- invalid -- 'Anianiau, Anianiau
  Hemignathus procerus Cabanis, 1890 -- invalid -- Kauai 'Alialoa
  Hemignathus sagittirostris (Rothschild, 1892) -- invalid -- Greater 'Amakihi, Greater Amakihi
  Hemignathus virens (J. F. Gmelin, 1788) -- invalid -- Common 'Amakihi, Hawaii Amakihi
  Hemiphyllodactylus Bleeker, 1860 -- valid -- Gypsy Geckos, Small Tree Geckos, Tree Geckos
  Hemiphyllodactylus typus Bleeker, 1860 -- valid -- Indo-Pacific slender gecko, Indo-Pacific Tree Gecko, Indopacific Tree Gecko, Small Tree Gecko
  Hemiphyllodactylus typus typus Bleeker, 1860 -- invalid -- Common Indo-Pacific Tree Gecko, Small Tree Gecko
  Herpestes Illiger, 1811 -- valid -- mongooses
  Herpestes auropunctatus (Hodgson, 1836) -- invalid -- Indian mongoose
  Herpestidae Bonaparte, 1845 -- valid -- civets, mongooses
  Heterodon Latreille in Sonnini and Latreille, 1801 -- valid -- Hog-nosed Snakes, North American Hog-nosed Snakes
  Heterodon nasicus Baird and Girard, 1852 -- valid -- Culebra-nariz de cerdo occidental, Western Hog-nosed Snake
  Heterodon nasicus nasicus Baird and Girard, 1852 -- valid -- Plains Hognose Snake
  Heterodon simus (Linnaeus, 1766) -- valid -- Southern Hog-nosed Snake
  Heteromyidae Gray, 1868 -- valid -- heteromyid rodents, Kangaroo Mice, Kangaroo Rats, Pocket Mice
  Heteroscelus Baird, 1858 -- invalid -- Tattlers
  Heteroscelus brevipes (Vieillot, 1816) -- invalid -- Gray-tailed Tattler, Grey-tailed Tattler
  Heteroscelus incanus (Gmelin, 1789) -- invalid -- Playero vagabundo, Wandering Tattler
  Himantopus Brisson, 1760 -- valid -- Stilts
  Himantopus mexicanus (Statius Muller, 1776) -- valid -- Ae'o, Black-necked Stilt, Candelero americano, echasse d'Amérique, Échasse d'Amérique, Hawaiian Stilt
  Himatione Cabanis, 1850 -- valid -- 'Apapanes
  Hirundapus Hodgson, 1837 -- valid -- Needletails
  Hirundapus caudacutus (Latham, 1802) -- valid -- White-throated Needletail
  Hirundinidae Rafinesque, 1815 -- valid
  Hirundo Linnaeus, 1758 -- valid -- Barn Swallows
  Hirundo fulva Vieillot, 1808 -- invalid -- Cave Swallow, Golondrina pueblera
  Hirundo pyrrhonota Vieillot, 1817 -- invalid -- Cliff Swallow, Golondrina risquera
  Hirundo rustica Linnaeus, 1758 -- valid -- Barn Swallow, Golondrina tijereta, hirondelle rustique
  Histrionicus Lesson, 1828 -- valid -- Harlequin Ducks
  Histrionicus histrionicus (Linnaeus, 1758) -- valid -- arlequin plongeur, Harlequin Duck, Pato arlequín
  Holbrookia Girard, 1851 -- valid -- Earless Lizards, Lesser Earless Lizards
  Holbrookia lacerata Cope, 1880 -- valid -- Lagartija-sorda cola punteada, Spot-tailed Earless Lizard
  Holbrookia maculata Girard, 1851 -- valid -- Common Earless Lizard, Common Lesser Earless Lizard, Lagartija-sorda menor, Lesser Earless Lizard
  Holbrookia propinqua Baird and Girard, 1852 -- valid -- Keel-scaled Earless Lizard, Keeled Earless Lizard, Lagartija-sorda carinata
  Hominidae Gray, 1825 -- valid -- Great Apes, man-like primates
  Homo Linnaeus, 1758 -- valid -- hominoids
  Homo sapiens Linnaeus, 1758 -- valid -- Human, Humans, man
  Hydrobatidae Mathews, 1912 -- valid -- Storm Petrels
  Hyla cadaverina Cope, 1866 -- invalid -- California Treefrog
  Hyla chrysoscelis Cope, 1880 -- valid -- Cope's Gray Treefrog
  Hyla cinerea (Schneider, 1799) -- valid -- Green Tree Frog, Green Treefrog
  Hyla eximia Baird, 1854 -- valid -- Mountain Treefrog, Rana-de árbol de montaña
  Hyla femoralis Bosc in Daudin, 1800 -- valid -- Pine Woods Treefrog
  Hyla squirella Bosc in Daudin, 1800 -- valid -- Squirrel Treefrog
  Hylactophryne Lynch, 1968 -- invalid -- Barking Frogs
  Hylactophryne augusti (Dugès in Brocchi, 1879) -- invalid -- Barking Frog
  Hylidae Rafinesque, 1815 -- valid -- Hylid Frogs, hylidés, hylidés arboricoles, Hylids, New World Tree Frogs, Treefrogs
  Hylocharis Boie, 1831 -- valid
  Hylocharis leucotis (Vieillot, 1818) -- valid -- White-eared Hummingbird, Zafiro oreja blanca
  Hylocichla S. F. Baird, 1864 -- valid -- Wood Thrushes
  Hylocichla mustelina (Gmelin, 1789) -- valid -- grive des bois, Wood Thrush, Zorzal maculado
  Hyperoodon Lacépède, 1804 -- valid -- bottle-nosed whales, bottlenose whales
  Hyperoodon ampullatus (Forster, 1770) -- valid -- baleine à bec commune, North Atlantic bottle-nosed whale, northern bottle-nosed whale, Northern Bottlenose Whale
  Hyperoodon planifrons Flower, 1882 -- valid -- Ballena-picuda frente plana, southern bottle-nosed whale, Southern Bottlenose Whale
  Hypopachus variolosus (Cope, 1866) -- valid -- Northern Sheep Frog, Rana-oveja común, Sheep Frog
  Hypsiglena Cope, 1860 -- valid -- Night Snakes, Nightsnakes
  Hypsiglena torquata (Günther, 1860) -- valid -- Culebra-nocturna ojo de gato, Night Snake, Nightsnake
  Icteria Vieillot, 1808 -- valid -- Chats
  Icteria virens (Linnaeus, 1758) -- valid -- Buscabreña, Paruline polyglotte, Yellow-breasted Chat
  Icterus Brisson, 1760 -- valid -- American Orioles
  Icterus cucullatus Swainson, 1827 -- valid -- Bolsero encapuchado, Hooded Oriole
  Icterus dominicensis (Linnaeus, 1766) -- valid -- Black-cowled Oriole, Bolsero dominico, Greater Antillean Oriole
  Icterus galbula (Linnaeus, 1758) -- valid -- Baltimore Oriole, Bolsero de Baltimore, Northern Oriole, oriole du nord
  Icterus graduacauda Lesson, 1839 -- valid -- Audubon's Oriole, Bolsero cabeza negra
  Icterus gularis (Wagler, 1829) -- valid -- Altamira Oriole, Bolsero de Altamira
  Icterus icterus (Linnaeus, 1766) -- valid -- Troupial, Venezuelan Troupial
  Icterus parisorum Bonaparte, 1838 -- valid -- Bolsero tunero, Scott's Oriole
  Icterus pectoralis (Wagler, 1829) -- valid -- Bolsero pecho manchado, Spot-breasted Oriole
  Icterus pustulatus (Wagler, 1829) -- valid -- Bolsero dorso rayado, Streak-backed Oriole
  Icterus spurius (Linnaeus, 1766) -- valid -- Bolsero castaño, Orchard Oriole, oriole des vergers
  Icterus wagleri P. L. Sclater, 1857 -- valid -- Black-vented Oriole, Bolsero de Wagler
  Ictinia Vieillot, 1816 -- valid -- Mississippi Kites
  Idionycteris Anthony, 1923 -- valid -- Allen's big-eared bats
  Idionycteris phyllotis (G. M. Allen, 1916) -- valid -- Allen's big-eared bat, Allen's Big-eared Bat, Murciélago-mula de Allen
  Iguana Laurenti, 1768 -- valid -- Iguanas
  Iguana iguana (Linnaeus, 1758) -- valid -- Common Green Iguana, Green Iguana, Iguana verde, iguane commun
  Iguanidae -- valid -- American Arboreal Lizards, Chuckwallas, Iguanas, Iguanids
  Isolobodon J. A. Allen, 1916 -- valid -- Puerto Rican hutias
  Isolobodon portoricensis J. A. Allen, 1916 -- valid -- Puerto Rican Hutia, Puerto Rico hutia
  Ixobrychus Billberg, 1828 -- valid -- Least Bitterns
  Ixobrychus eurhythmus (Swinhoe, 1873) -- valid -- Schrenk's Bittern, Von Schrenck's Bittern
  Ixobrychus exilis (Gmelin, 1789) -- valid -- Avetoro mínimo, Least Bittern, Petit Blongios
  Ixobrychus sinensis (Gmelin, 1789) -- valid -- Blongios de Chine, Chinese Bittern, Yellow Bittern
  Ixoreus Bonaparte, 1854 -- valid -- Varied Thrushes
  Ixoreus naevius (Gmelin, 1789) -- valid -- grive à collier, Mirlo pecho cinchado, Varied Thrush
  Jabiru Hellmayr, 1906 -- valid -- Jabirus
  Jabiru mycteria (Lichtenstein, 1819) -- valid -- Cigüeña jabirú, Jabiru, Jabiru d'Amérique
  Jacana Brisson, 1760 -- valid -- Jacanas
  Jacana spinosa (Linnaeus, 1758) -- valid -- Jacana du Mexique, Jacana norteña, Northern Jacana
  Jacanidae Chenu & Des Murs, 1854 -- valid -- Jacanas
  Junco Wagler, 1831 -- valid -- Juncos
  Junco hyemalis (Linnaeus, 1758) -- valid -- Dark-eyed Junco, junco ardoisé, Junco ojo oscuro
  Junco phaeonotus Wagler, 1831 -- valid -- Junco ojo de lumbre, Yellow-eyed Junco
  Jynx Linnaeus, 1758 -- valid -- Wrynecks
  Jynx torquilla Linnaeus, 1758 -- valid -- Eurasian Wryneck
  Kinosternidae Agassiz, 1857 -- valid -- Mud Turtles, Musk Turtles
  Kinosternon Spix, 1824 -- valid -- American Mud Turtles, American musk turtles, mud turtles
  Kinosternon baurii (Garman, 1891) -- valid -- Striped Mud Turtle
  Kinosternon flavescens (Agassiz, 1857) -- valid -- Tortuga-pecho quebrado amarilla, Yellow Mud Turtle
  Kinosternon hirtipes Wagler, 1830 -- valid -- Mexican mud turtle, Mexican Rough-footed Mud Turtle, Rough-footed Mud Turtle, Tortuga-pecho quebrado pata rugosa
  Kinosternon sonoriense Le Conte, 1854 -- valid -- Sonora Mud Turtle, Sonoran mud turtle, Tortuga-pecho quebrado sonorense
  Kinosternon subrubrum (Lacépède, 1788) -- invalid -- Eastern Mud Turtle
  Kogia Gray, 1846 -- valid -- pygmy sperm whales, small sperm whales
  Kogia breviceps (Blainville, 1838) -- valid -- Cachalote pigmeo, Pygmy Sperm Whale
  Kogia sima (Owen, 1866) -- valid -- Dwarf Sperm Whale
  Kogia simus (Owen, 1866) -- invalid -- dwarf sperm whale
  Lagenodelphis Fraser, 1956 -- valid -- Borneau dolphins
  Lagenodelphis hosei Fraser, 1956 -- valid -- Delfín de Fraser, Fraser's Dolphin
  Lagenorhynchus Gray, 1846 -- valid -- white-beaked dolphins, white-sided dolphins
  Lagenorhynchus acutus (Gray, 1828) -- valid -- Atlantic White-sided Dolphin, dauphin à flancs blancs
  Lagenorhynchus albirostris (Gray, 1846) -- valid -- dauphin à nez blanc, White-beaked Dolphin
  Lagenorhynchus obliquidens Gill, 1865 -- valid -- Delfín costado blanco, Pacific White-sided Dolphin
  Lagomorpha Brandt, 1855 -- valid -- coelho, Hares, lagomorphs, Pikas, Rabbits, tapeti
  Lagopus Brisson, 1760 -- valid -- Ptarmigans
  Lagopus lagopus (Linnaeus, 1758) -- valid -- lagopède des saules, Willow Grouse, Willow Ptarmigan
  Lagopus leucurus (Richardson, 1831) -- invalid -- White-tailed Ptarmigan
  Lagopus mutus (Montin, 1781) -- invalid -- lagopède alpin, Rock Ptarmigan
  Lagurus Gloger, 1841 -- valid -- Sagebrush Voles
  Lagurus curtatus (Cope, 1868) -- invalid -- Sagebrush Vole
  Lampornis Swainson, 1827 -- valid -- Blue-throated Hummingbirds
  Lampornis clemenciae (Lesson, 1829) -- valid -- Blue-throated Hummingbird, Blue-throated Mountaingem, Colibrí garganta azul
  Lamprolepis Fitzinger, 1843 -- valid -- Tree Skinks, Treeskinks
  Lamprolepis smaragdina (Lesson, 1830) -- valid -- Green Tree Skink, Green Treeskink
  Lampropeltis Fitzinger, 1843 -- valid -- Kingsnakes, Milk Snakes
  Lampropeltis calligaster (Harlan, 1827) -- valid -- Prairie Kingsnake, Yellow-bellied Kingsnake
  Lampropeltis pyromelana (Cope, 1867) -- valid -- Culebra-real sonorense, Sonoran Mountain Kingsnake
  Lampropeltis zonata (Lockington, 1876 ex Blainville, 1835) -- valid -- California Mountain Kingsnake, Culebra-real californiana
  Lampropholis Fitzinger, 1843 -- valid -- Indo-Australian Ground Skinks
  Lampropholis delicata (De Vis, 1888) -- valid -- Garden Skink, Metallic Skink
  Laniidae Rafinesque, 1815 -- valid -- Shrikes
  Lanius Linnaeus, 1758 -- valid -- Shrikes
  Lanius cristatus Linnaeus, 1758 -- valid -- Brown Shrike
  Lanius excubitor Linnaeus, 1758 -- valid -- Great Grey Shrike, Northern Shrike, pie-grièche grise
  Lanius ludovicianus Linnaeus, 1766 -- valid -- Alcaudón verdugo, Loggerhead Shrike, pie-grièche migratrice
  Larinae -- invalid
  Larus Linnaeus, 1758 -- valid -- Gulls, Ivory Gulls, Kittiwakes, Ross' Gulls, Sabine's Gulls
  Larus argentatus Pontoppidan, 1763 -- valid -- European Herring Gull, Gaviota plateada, Goéland argenté, Herring Gull
  Larus atricilla Linnaeus, 1758 -- invalid -- Gaviota reidora, Laughing Gull, mouette atricille
  Larus belcheri Vigors, 1829 -- valid -- Band-tailed Gull, Belcher's Gull, Goéland siméon
  Larus californicus Lawrence, 1854 -- valid -- California Gull, Gaviota californiana, Goéland de Californie
  Larus canus Linnaeus, 1758 -- valid -- Gaviota cana, Goéland cendré, Mew Gull
  Larus delawarensis Ord, 1815 -- valid -- Gaviota pico anillado, Goéland à bec cerclé, Ring-billed Gull
  Larus fuscus Linnaeus, 1758 -- valid -- Gaviota sombría, Goéland brun, Lesser Black-backed Gull
  Larus glaucescens J. F. Naumann, 1840 -- valid -- Gaviota ala glauca, Glaucous-winged Gull, Goéland à ailes grises
  Larus glaucoides B. Meyer, 1822 -- valid -- Goéland arctique, Iceland Gull
  Larus heermanni Cassin, 1852 -- valid -- Gaviota ploma, Goéland de Heermann, Heermann's Gull
  Larus hyperboreus Gunnerus, 1767 -- valid -- Gaviota blanca, Glaucous Gull, Goéland bourgmestre
  Larus livens Dwight, 1919 -- valid -- Gaviota pata amarilla, Goéland de Cortez, Yellow-footed Gull
  Larus marinus Linnaeus, 1758 -- valid -- Goéland marin, Great Black-backed Gull
  Larus minutus Pallas, 1776 -- invalid -- Gaviota mínima, Little Gull, mouette pygmée
  Larus occidentalis Audubon, 1839 -- valid -- Gaviota occidental, Goéland d'Audubon, Western Gull
  Larus philadelphia (Ord, 1815) -- invalid -- Bonaparte's Gull, Gaviota de Bonaparte, mouette de Bonaparte
  Larus pipixcan Wagler, 1831 -- invalid -- Franklin's Gull, Gaviota de Franklin, mouette de Franklin
  Larus ridibundus Linnaeus, 1766 -- invalid -- Black-headed Gull, Common Black-headed Gull, Gaviota encapuchada, mouette rieuse
  Larus schistisagus Stejneger, 1884 -- valid -- Goéland à manteau ardoisé, Slaty-backed Gull
  Larus thayeri W. S. Brooks, 1915 -- valid -- Gaviota de Thayer, Goéland de Thayer, Thayer's Gull
  Lasionycteris Peters, 1866 -- valid -- silver-haired bats
  Lasionycteris noctivagans (Le Conte, 1831) -- valid -- chauve-souris argentée, Murciélago pelo plateado, silver-haired bat, Silver-haired Bat
  Lasiurus Gray, 1831 -- valid -- hairy-tailed bats
  Lasiurus borealis (Müller, 1776) -- valid -- chauve-souris rousse, eastern red bat, Eastern Red Bat, Murciélago-cola peluda rojizo, red bat
  Lasiurus cinereus (Palisot de Beauvois, 1796) -- valid -- chauve-souris cendrée, Hoary Bat, hoary bat, Murciélago-cola peluda canoso
  Lasiurus ega (Gervais, 1856) -- valid -- Murciélago-cola peluda amarillo, Southern Yellow Bat, southern yellow bat
  Lasiurus intermedius H. Allen, 1862 -- valid -- Murciélago-cola peluda norteño, Northern Yellow Bat, northern yellow bat
  Lasiurus seminolus (Rhoads, 1895) -- valid -- Seminole bat, Seminole Bat
  Laterallus G. R. Gray, 1855 -- valid -- Black Rails
  Laterallus jamaicensis (Gmelin, 1789) -- valid -- Black Rail, Polluela negra, râle noir
  Laticauda Laurenti, 1768 -- valid -- Sea Kraits, Seakraits
  Leiocephalus Gray, 1827 -- valid -- Curly-tailed Lizards
  Leiocephalus carinatus Gray, 1827 -- valid -- Carinate Curly-tailed Lizard, Northern Curly-tailed Lizard
  Leiocephalus eremitus Cope, 1868 -- valid -- Navassa Curly-tailed Lizard
  Leiocephalus schreibersii (Gravenhorst, 1837) -- valid -- Red-sided Curly-tailed Lizard, Schreiber's Curly-tailed Lizard
  Leiopelmatidae Mivart, 1869 -- valid -- Leiopelmatids, Ribbed Frogs, Tailed Frogs
  Leiothrix Swainson, 1832 -- valid -- Leiothrixes
  Leiothrix lutea (Scopoli, 1786) -- valid -- Red-billed Leiothrix
  Lemmus Rochebrune, 1843 -- invalid -- brown lemmings
  Lemmus sibiricus (Kerr, 1792) -- valid -- Black-footed Lemming, Brown Lemming, Siberian Brown Lemming, Siberian Lemming
  Lepidochelys Fitzinger, 1843 -- valid -- Ridley Sea Turtles
  Lepidochelys kempi (Garman, 1880) -- invalid -- Tortuga-marina escamosa-del Atlántico
  Lepidochelys olivacea (Eschscholtz, 1829) -- valid -- Olive Ridley, Olive Ridley Sea Turtle, Pacific ridley, Pacific Ridley Sea Turtle, Tortuga-marina escamosa-del Pacífico
  Lepidodactylus Fitzinger, 1843 -- valid -- Indo-Pacific Geckos, Scaly-toed Geckos
  Lepidodactylus lugubris (Duméril and Bibron, 1836) -- valid -- Mourning Gecko
  Leporidae Fischer, 1817 -- valid -- Hares, Rabbits
  Leptodactylidae Werner, 1896 -- valid -- grenouilles néotropicales, Leptodactylid Frogs, Leptodactylids, Neotropical Frogs
  Leptodactylus Fitzinger, 1826 -- valid -- Foam-nest Frogs, Neotropical Grass Frogs, Thin-toed Frogs, White-lipped Frogs
  Leptodactylus fragilis (Brocchi, 1877) -- valid -- Mexican White-lipped Frog, White-lipped Frog
  Leptodeira Fitzinger, 1843 -- valid -- Cat-eyed Snakes
  Leptodeira septentrionalis (Kennicott in Baird, 1859) -- valid -- Cat-eyed Snake, Culebra-ojo de gato norteña o manchada
  Leptonycteris Lydekker, 1891 -- valid -- Mexican long-nosed bats
  Leptonycteris nivalis (Saussure, 1860) -- valid -- big long-nosed bat, Mexican Long-nosed Bat, Mexican long-nosed bat, Murciélago-hocicudo mayor
  Leptonycteris sanborni Hoffmeister, 1957 -- invalid -- Sanborn's long-nosed bat
  Leptotila Swainson, 1837 -- valid -- White-tipped Doves
  Leptotila verreauxi (Bonaparte, 1855) -- valid -- Paloma arroyera, White-tipped Dove
  Leptotyphlopidae Stejneger, 1892 -- valid -- Slender Blind Snakes, Thread Snakes, Threadsnakes
  Leptotyphlops Fitzinger, 1843 -- valid -- Slender Blind Snakes, Threadsnakes
  Leptotyphlops dulcis (Baird and Girard, 1853) -- valid -- Serpiente-lombriz texana, Texas Slender Blind Snake, Texas Threadsnake
  Lepus Linnaeus, 1758 -- valid -- Hares, Jack Rabbits, Jackrabbits
  Lepus alleni Mearns, 1890 -- valid -- antelope jack rabbit, Antelope Jackrabbit, Liebre antilope
  Lepus americanus Erxleben, 1777 -- valid -- lièvre d'Amérique, Snowshoe Hare
  Lepus californicus Gray, 1837 -- valid -- black-tailed jack rabbit, Black-tailed Jackrabbit, Liebre cola negra
  Lepus callotis Wagler, 1830 -- valid -- Beautiful-eared jack rabbit, Gaillard jack rabbit, Liebre torda, snow sides, white-sided jack rabbit, White-sided Jackrabbit
  Lepus capensis Linnaeus, 1758 -- valid -- Cape Hare
  Lepus gaillardi Mearns, 1896 -- invalid
  Lepus timidus Linnaeus, 1758 -- valid -- Mountain Hare
  Lepus townsendii Bachman, 1839 -- valid -- white-tailed jack rabbit, White-tailed Jackrabbit
  Leucosticte Swainson, 1832 -- valid -- Rosy Finches
  Leucosticte arctoa (Pallas, 1811) -- valid -- Asian Rosy Finch, Rosy Finch
  Leurognathus Moore, 1899 -- invalid -- Shovel-nosed Salamanders
  Leurognathus marmoratus Moore, 1899 -- invalid -- Shovel-nosed Salamander
  Limicola Koch, 1816 -- valid -- Broad-billed Sandpipers
  Limicola falcinellus (Pontoppidan, 1763) -- valid -- Bécasseau falcinelle, Broad-billed Sandpiper
  Limnaoedus Mittleman and List, 1953 -- invalid -- Little Grass Frogs
  Limnaoedus ocularis (Bosc and Daudin in Sonnini de Manoncourt and Latreille, 1801) -- invalid -- Little Grass Frog
  Limnodromus Wied-Neuwied, 1833 -- valid -- Dowitchers
  Limnodromus griseus (Gmelin, 1789) -- valid -- Bécassin roux, Costurero pico corto, Short-billed Dowitcher
  Limnodromus scolopaceus (Say, 1822) -- valid -- Bécassin à long bec, Costurero pico largo, Long-billed Dowitcher
  Limnothlypis Stone, 1914 -- valid -- Swainson's Warblers
  Limnothlypis swainsonii (Audubon, 1834) -- valid -- Chipe corona café, Paruline de Swainson, Swainson's Warbler
  Limosa Brisson, 1760 -- valid -- Godwits
  Limosa fedoa (Linnaeus, 1758) -- valid -- Barge marbrée, Marbled Godwit, Picopando canelo
  Limosa haemastica (Linnaeus, 1758) -- valid -- Barge hudsonienne, Hudsonian Godwit, Picopando ornamentado
  Limosa lapponica (Linnaeus, 1758) -- valid -- Bar-tailed Godwit, Barge rousse, Picopando cola barrada
  Limosa limosa (Linnaeus, 1758) -- valid -- Barge à queue noire, Black-tailed Godwit
  Liomys Merriam, 1902 -- valid -- Spiny Pocket Mice
  Liomys irroratus (Gray, 1868) -- valid -- Mexican Spiny Pocket Mouse, Ratón-espinoso mexicano
  Lipinia Gray, 1845 -- valid -- Lipinias
  Lipinia leptosoma (Brown and Fehlmann, 1958) -- valid -- Palau Pandanus Skink, Pandanus Skink
  Lipinia noctua (Lesson, 1830) -- valid -- Moth Skink
  Lissodelphis Gloger, 1841 -- valid -- right whale dolphins, right-whale dolphins
  Lissodelphis borealis (Peale, 1848) -- valid -- Delfín-ballena norteño, Northern Right Whale Dolphin
  Lissodelphis peronii (Lacépède, 1804) -- valid -- Southern Right Whale Dolphin
  Locustella Kaup, 1829 -- valid -- Grasshopper-Warbler
  Locustella lanceolata (Temminck, 1840) -- valid -- Lanceolated Warbler
  Locustella ochotensis (Middendorff, 1853) -- valid -- Middendorff's Grasshopper Warbler, Middendorff's Grasshopper-Warbler
  Lonchura Sykes, 1832 -- valid -- Mannikins
  Lonchura cucullata (Swainson, 1837) -- valid -- Bronze Mannikin
  Lonchura hunsteini (Finsch, 1886) -- valid -- Black-breasted Mannikin, Mottled Munia
  Lonchura malabarica (Linnaeus, 1758) -- invalid -- Indian Silverbill, Warbling Silverbill
  Lonchura malacca (Linnaeus, 1766) -- valid -- Black-headed Munia, Chestnut Mannikin, Tricolored Munia
  Lonchura punctulata (Linnaeus, 1758) -- valid -- Nutmeg Mannikin, Scaly-breasted Munia
  Lophodytes Reichenbach, 1853 -- valid -- Hooded Mergansers
  Lophodytes cucullatus (Linnaeus, 1758) -- valid -- harle couronné, Hooded Merganser, Mergo cresta blanca
  Lophura Fleming, 1822 -- valid -- Kalij Pheasants
  Lophura leucomelana (Latham, 1790) -- invalid -- Kalij Pheasant
  Loxia Linnaeus, 1758 -- valid -- Crossbills
  Loxia curvirostra Linnaeus, 1758 -- valid -- bec-croisé des sapins, Picotuerto rojo, Red Crossbill
  Loxia leucoptera J. F. Gmelin, 1789 -- valid -- bec-croisé bifascié, Two-barred Crossbill, White-winged Crossbill
  Loxigilla Lesson, 1831 -- valid -- Antillean Bullfinches
  Loxigilla noctis (Linnaeus, 1766) -- valid -- Lesser Antillean Bullfinch
  Loxigilla portoricensis (Daudin, 1800) -- valid -- Puerto Rican Bullfinch
  Loxioides Oustalet, 1877 -- valid -- Palilas
  Loxioides bailleui Oustalet, 1877 -- valid -- Honeycreeper, Palila
  Loxops Cabanis, 1847 -- valid -- 'Akepas
  Loxops coccineus (J. F. Gmelin, 1789) -- valid -- 'Akepa, Akepa, Honeycreeper
  Luscinia T. Forster, 1817 -- valid -- Rubythroats
  Luscinia calliope (Pallas, 1776) -- valid -- Siberian Rubythroat
  Luscinia svecica (Linnaeus, 1758) -- valid -- Bluethroat, Bluethroats
  Lutra Brünnich, 1771 -- invalid -- river otters
  Lutra canadensis (Schreber, 1777) -- invalid -- river otter
  Lymnocryptes Kaup, 1829 -- invalid -- Jack Snipes
  Lymnocryptes minimus (Brunnich, 1764) -- valid -- Bécassine sourde, Jack Snipe
  Lynx Kerr, 1792 -- valid -- bobcats, lynxes
  Lynx canadensis Kerr, 1792 -- valid -- Canada lynx, Canadian Lynx, lynx, lynx du Canada
  Lynx rufus (Schreber, 1777) -- valid -- Bobcat, Lince americano, lynx roux
  Mabuya Fitzinger, 1826 -- valid -- Mabuyas
  Mabuya multicarinata (Gray, 1845) -- valid -- Many-keeled Mabuya
  Mabuya multifasciata (Kuhl, 1820) -- valid -- Many-striped Skink
  Mabuya sloanii (Daudin, 1803) -- valid -- Slippery Back Skink, Slippery-backed Mabuya
  Macaca Lacépède, 1799 -- valid -- macaques
  Macaca fascicularis (Raffles, 1821) -- valid -- Crab-eating Macaque, Long-tailed Macaque
  Macaca mulatta (Zimmermann, 1780) -- valid -- Rhesus Macaque, Rhesus Monkey
  Macroclemys Gray, 1856 -- invalid -- alligator snapping turtles
  Macroclemys temminckii (Troost in Harlan, 1835) -- invalid -- alligator snapping turtle
  Macropodidae Gray, 1821 -- valid -- kangaroos, wallabies
  Macrotus Gray, 1843 -- valid -- leaf-nosed bats
  Macrotus californicus Baird, 1858 -- valid -- California leaf-nosed bat, Californian Leaf-nosed Bat, Murciélago-orejón californiano
  Malaclemys Gray, 1844 -- valid -- Diamondback Terrapins
  Malaclemys terrapin (Schoepff, 1793) -- valid -- Diamond-backed Terrapin, Diamondback Terrapin
  Margarops P. L. Sclater, 1859 -- valid -- Antillean Thrashers
  Margarops fuscatus (Vieillot, 1808) -- valid -- Pearly-eyed Thrasher
  Marmota Blumenbach, 1779 -- valid -- Marmots
  Marmota broweri Hall and Gilmore, 1934 -- valid -- Alaska Marmot
  Marmota caligata (Eschscholtz, 1829) -- valid -- Hoary Marmot
  Marmota flaviventris (Audubon and Bachman, 1841) -- valid -- Yellow-bellied Marmot
  Marmota monax (Linnaeus, 1758) -- valid -- Groundhog, marmotte commune, Woodchuck
  Marmota olympus (Merriam, 1898) -- valid -- Olympic Marmot
  Marmota vancouverensis Swarth, 1911 -- valid -- Vancouver Island Marmot, Vancouver Marmot
  Martes Pinel, 1792 -- valid -- fishers, martens
  Martes pennanti (Erxleben, 1777) -- valid -- Fisher, pékan
  Masticophis Baird and Girard, 1853 -- valid -- Coachwhips, Racers, Striped Racers, Whipsnakes
  Masticophis bilineatus Jan, 1863 -- valid -- Culebra-chirriadora sonorense, Sonoran Whipsnake
  Masticophis flagellum (Shaw, 1802) -- valid -- Coachwhip, Culebra-chirriadora común
  Masticophis lateralis (Hallowell, 1853) -- valid -- Culebra-chirriadora rayada, Striped Racer
  Masticophis taeniatus (Hallowell, 1852) -- valid -- Culebra-chirriadora adornada, Striped Whipsnake
  Megapodiidae -- valid -- Megapodes
  Megapodius Gaimard, 1823 -- valid -- Megapodes
  Megapodius laperouse Gaimard, 1823 -- valid -- La Perouse's Megapode, Micronesian Megapode
  Megaptera Gray, 1846 -- valid -- humpback whales
  Megaptera novaeangliae (Borowski, 1781) -- valid -- Ballena jorobada, Humpback Whale, rorqual à bosse
  Melamprosops Casey & J. D. Jacobi, 1974 -- valid -- Po'o'ulis
  Melamprosops phaeosoma Casey & J. D. Jacobi, 1974 -- valid -- Po'o'uli, Poo-uli
  Melanerpes Swainson, 1832 -- valid -- Melanerpine Woodpeckers
  Melanerpes aurifrons (Wagler, 1829) -- valid -- Carpintero cheje, Golden-fronted Woodpecker
  Melanerpes carolinus (Linnaeus, 1758) -- valid -- pic à ventre roux, Red-bellied Woodpecker
  Melanerpes erythrocephalus (Linnaeus, 1758) -- valid -- pic à tête rouge, Red-headed Woodpecker
  Melanerpes formicivorus (Swainson, 1827) -- valid -- Acorn Woodpecker, Carpintero bellotero
  Melanerpes lewis (G. R. Gray, 1849) -- valid -- Carpintero de Lewis, Lewis' Woodpecker, Lewis's Woodpecker
  Melanerpes portoricensis (Daudin, 1803) -- valid -- Puerto Rican Woodpecker
  Melanerpes uropygialis (S. F. Baird, 1854) -- valid -- Carpintero del desierto, Gila Woodpecker
  Melanitta F. Boie, 1822 -- valid -- Scoters
  Melanitta fusca (Linnaeus, 1758) -- valid -- macreuse brune, Negreta ala blanca, Velvet Scoter, White-winged Scoter
  Melanitta nigra (Linnaeus, 1758) -- valid -- Black Scoter, macreuse noire, Negreta negra
  Melanitta perspicillata (Linnaeus, 1758) -- valid -- macreuse à front blanc, Negreta nuca blanca, Surf Scoter
  Meleagridinae -- valid -- Turkeys
  Meleagris Linnaeus, 1758 -- valid -- Turkeys
  Meleagris gallopavo Linnaeus, 1758 -- valid -- dindon sauvage, Guajolote norteño, Wild Turkey
  Meliphagidae -- valid -- Honeyeaters
  Melopsittacus Gould, 1840 -- valid -- Budgerigars
  Melopsittacus undulatus (Shaw, 1805) -- valid -- Budgerigar
  Melospiza S. F. Baird, 1858 -- valid -- Song Sparrows
  Melospiza georgiana (Latham, 1790) -- valid -- bruant des marais, Gorrión pantanero, Swamp Sparrow
  Melospiza melodia (A. Wilson, 1810) -- valid -- bruant chanteur, Gorrión cantor, Song Sparrow
  Mephitis É. Geoffroy Saint-Hilaire and F. G. Cuvier, 1795 -- valid -- hooded skunks, striped skunks
  Mephitis macroura Lichtenstein, 1832 -- valid -- Hooded Skunk, Zorrillo-listado del sur
  Mephitis mephitis (Schreber, 1776) -- valid -- mouffette rayée, Striped Skunk, Zorrillo-listado del norte
  Mergellus Selby, 1840 -- valid -- Smews
  Mergellus albellus (Linnaeus, 1758) -- valid -- harle piette, Smew
  Mergus Linnaeus, 1758 -- valid -- Greater Mergansers
  Mergus merganser Linnaeus, 1758 -- valid -- Common Merganser, grand harle, Mergo mayor
  Mergus serrator Linnaeus, 1758 -- valid -- harle huppé, Mergo copetón, Red-breasted Merganser
  Mesoplodon Gervais, 1850 -- valid -- beaked whales
  Mesoplodon bidens (Sowerby, 1804) -- valid -- North Atlantic beaked whale, Sowerby's Beaked Whale
  Mesoplodon carlhubbsi Moore, 1963 -- valid -- arch-beaked whale, archbeaked whale, Ballena-picuda de Hubb, Hubbs' Beaked Whale, Hubbs's Beaked Whale
  Mesoplodon densirostris (Blainville, 1817) -- valid -- Ballena-picuda de Blainsville, Blainville's Beaked Whale, dense-beaked whale, densebeak whale
  Mesoplodon europaeus (Gervais, 1855) -- valid -- Gervais' Beaked Whale, Gervais's Beaked Whale
  Mesoplodon ginkgodens Nishiwaki and Kamiya, 1958 -- valid -- Ballena-picuda japonesa, Ginkgo-toothed Beaked Whale, ginkgo-toothed whale
  Mesoplodon grayi von Haast, 1876 -- valid -- Gray's Beaked Whale, Haast's beaked whale
  Mesoplodon hectori (Gray, 1871) -- valid -- Hector's Beaked Whale
  Mesoplodon layardii (Gray, 1865) -- valid -- Layard's beaked whale, Strap-toothed Whale
  Mesoplodon mirus True, 1913 -- valid -- True's Beaked Whale
  Mesoplodon stejnegeri True, 1885 -- valid -- Bering Sea beaked whale, Stejneger's Beaked Whale
  Metabolus Bonaparte, 1854 -- valid -- Truk Monarchs
  Metabolus rugensis (Hombron & Jacquinot, 1841) -- valid -- Chuuk Monarch, Truk Monarch
  Micrathene Coues, 1866 -- valid -- Elf Owls
  Micrathene whitneyi (J. G. Cooper, 1861) -- valid -- Elf Owl, Tecolote enano
  Microdipodops Merriam, 1891 -- valid -- Kangaroo Mice
  Microdipodops megacephalus Merriam, 1891 -- valid -- Dark Kangaroo Mouse
  Microdipodops pallidus Merriam, 1901 -- valid -- Pale Kangaroo Mouse
  Micropalama himantopus (Bonaparte, 1826) -- invalid
  Microtus Schrank, 1798 -- valid -- Meadow Mice, Meadow Voles
  Microtus abbreviatus Miller, 1899 -- valid -- Insular Vole, St. Matthews Island vole
  Microtus breweri (Baird, 1857) -- valid -- Beach Vole
  Microtus californicus (Peale, 1848) -- valid -- Amargosa Vole, California Vole, Meteoro de California
  Microtus californicus californicus (Peale, 1848) -- invalid -- California vole
  Microtus canicaudus Miller, 1897 -- valid -- Gray-tailed Vole
  Microtus chrotorrhinus (Miller, 1894) -- valid -- campagnol des rochers, Rock Vole
  Microtus coronarius Swarth, 1911 -- invalid -- Coronation Island vole
  Microtus longicaudus (Merriam, 1888) -- valid -- Coronation Island vole, Long-tailed Vole
  Microtus mexicanus (Saussure, 1861) -- valid -- Meteoro mexicano, Mexican Vole
  Microtus mexicanus mexicanus (Saussure, 1861) -- invalid -- Mexican vole
  Microtus miurus Osgood, 1901 -- valid -- Singing Vole
  Microtus montanus (Peale, 1848) -- valid -- Montane Vole
  Microtus nesophilus Bailey, 1898 -- invalid -- Gull Island vole
  Microtus ochrogaster (Wagner, 1842) -- valid -- Prairie Vole
  Microtus oeconomus (Pallas, 1776) -- valid -- Root Vole, Tundra Vole
  Microtus oregoni (Bachman, 1839) -- valid -- Creeping Vole
  Microtus pinetorum (Le Conte, 1830) -- valid -- campagnol sylvestre, Pine Vole, Woodland Vole
  Microtus richardsoni (DeKay, 1842) -- valid -- North American Water Vole, Water Vole
  Microtus townsendii (Bachman, 1839) -- valid -- Townsend's Vole
  Microtus xanthognathus (Leach, 1815) -- valid -- Taiga Vole, Yellow-cheeked Vole
  Micruroides Schmidt, 1928 -- valid -- Sonoran Coralsnakes, Western Coral Snakes
  Micruroides euryxanthus (Kennicott, 1860) -- valid -- Serpiente-coralillo sonorense, Sonoran Coralsnake, Western Coral Snake
  Micrurus Wagler, 1824 -- valid -- American Coral Snakes, American Coralsnakes
  Micrurus fulvius (Linnaeus, 1766) -- valid -- Harlequin Coralsnake, Northern Coral Snake, Serpiente-coralillo arlequín
  Milvus Lacepede, 1799 -- valid -- Black Kites
  Milvus migrans (Boddaert, 1783) -- valid -- Black Kite, Milan noir
  Mimidae Bonaparte, 1853 -- valid -- Mockingbirds, Thrashers
  Mimus F. Boie, 1826 -- valid -- Mockingbirds
  Mimus gundlachii Cabanis, 1855 -- valid -- Bahama Mockingbird
  Mimus polyglottos (Linnaeus, 1758) -- valid -- Centzontle norteño, moqueur polyglotte, Northern Mockingbird
  Mirounga Gray, 1827 -- valid -- elephant seals
  Mirounga angustirostris (Gill, 1866) -- valid -- Elefante-marino norteño, Northern Elephant Seal, northern sea elephant
  Mniotilta Vieillot, 1816 -- valid -- Black-and-white Warblers
  Mniotilta varia (Linnaeus, 1766) -- valid -- Black-and-white Warbler, Chipe trepador, Paruline noir et blanc
  Moho Lesson, 1830 -- valid -- 'O'os, 'O'os
  Moho apicalis Gould, 1861 -- valid -- Oahu 'O'o, Oahu 'O'o, Oahu Oo, Oahu Oo
  Moho bishopi (Rothschild, 1893) -- valid -- Bishop's 'O'o, Bishop's 'O'o, Bishop's Oo, Bishop's Oo
  Moho braccatus Cassin, 1855 -- valid -- Honeyeater, Honeyeater, Kauai 'O'o, Kauai 'O'o, Kauai Oo, Kauai Oo, O'o A'a, O'o A'a
  Moho nobilis (Merrem, 1786) -- valid -- Hawaii 'O'o, Hawaii 'O'o, Hawaii Oo, Hawaii Oo
  Molossidae Gervais, 1856 -- valid -- free-tailed bats
  Molossus E. Geoffroy, 1805 -- valid -- velvety free-tailed bats
  Molossus molossus (Pallas, 1766) -- valid -- Murciélago-mastín de Pallas, Pallas' free-tailed bat, Pallas's mastiff bat, Pallas's Mastiff Bat
  Molothrus Swainson, 1832 -- valid -- Cowbirds
  Molothrus aeneus (Wagler, 1829) -- valid -- Bronzed Cowbird, Tordo ojo rojo
  Molothrus ater (Boddaert, 1783) -- valid -- Brown-headed Cowbird, Tordo cabeza café, vacher à tête brune
  Molothrus bonariensis (Gmelin, 1789) -- valid -- Shiny Cowbird
  Monachus Fleming, 1822 -- valid -- monk seals
  Monachus schauinslandi Matschie, 1905 -- valid -- Hawaiian Monk Seal
  Monachus tropicalis (Gray, 1850) -- valid -- Caribbean Monk Seal, Foca-monje del Caribe, West Indian monk seal
  Monarcha Vigors & Horsfield, 1827 -- valid -- Monarchs
  Monarcha godeffroyi Hartlaub, 1868 -- valid -- Yap Monarch
  Monarcha takatsukasae (Yamashina, 1931) -- valid -- Tinian Monarch
  Monodon Linnaeus, 1758 -- valid -- narwhals
  Monodon monoceros Linnaeus, 1758 -- valid -- narval, Narwhal
  Monodontidae Gray, 1821 -- valid -- white whales
  Monophyllus Leach, 1821 -- valid -- Antillean long-tongued bats
  Monophyllus plethodon Miller, 1900 -- valid -- insular long-tongued bat, insular single leaf bat, Insular Single-leaf Bat
  Monophyllus redmani Leach, 1821 -- valid -- Leach's single leaf bat, Leach's Single-leaf Bat, Puerto Rican long-tongued bat
  Monticola F. Boie, 1822 -- valid -- Rock-Thrushes
  Monticola solitarius (Linnaeus, 1758) -- valid -- Blue Rock Thrush, Blue Rock-Thrush
  Mormoopidae Saussure, 1860 -- valid -- ghost-faced bats, moustached bats, naked-backed bats
  Mormoops Leach, 1821 -- valid -- ghost-faced bats
  Mormoops blainvillii Leach, 1821 -- valid -- Antillean ghost-faced bat, Antillean Ghost-faced Bat, Blainville's ghost-faced bat
  Mormoops megalophylla (Peters, 1864) -- valid -- ghost-faced bat, Murciélago-barba arrugada norteño, Peter's ghost-faced bat, Peters's Ghost-faced Bat
  Motacilla Linnaeus, 1758 -- valid -- Wagtails
  Motacilla alba Linnaeus, 1758 -- valid -- Lavandera blanca, White Wagtail
  Motacilla cinerea Tunstall, 1771 -- valid -- Gray Wagtail, Grey Wagtail
  Motacilla flava Linnaeus, 1758 -- valid -- Western Yellow Wagtail, Yellow Wagtail
  Motacilla lugens Gloger, 1829 -- invalid -- Black-backed Wagtail
  Motacillidae Horsfield, 1821 -- valid -- Pipits, Wagtails
  Muridae Illiger, 1811 -- valid -- campagnols, mice, rats, rats, souris, voles
  Mus Linnaeus, 1758 -- valid -- House Mice, Old World Mice
  Muscicapa Brisson, 1760 -- valid -- Old World Flycatchers
  Muscicapa griseisticta (Swinhoe, 1861) -- valid -- Gray-spotted Flycatcher, Gray-streaked Flycatcher, Grey-streaked Flycatcher
  Muscicapa sibirica Gmelin, 1789 -- valid -- Dark-sided Flycatcher, Siberian Flycatcher
  Muscicapidae Fleming, 1822 -- valid -- Chats, Old World Flycatchers
  Mustela Linnaeus, 1758 -- valid -- ermines, ferrets, minks, weasels
  Mustela erminea Linnaeus, 1758 -- valid -- Ermine, hermine
  Mustela frenata Lichtenstein, 1831 -- valid -- belette à longue queue, Comadreja cola larga, Long-tailed Weasel
  Mustela nigripes (Audubon and Bachman, 1851) -- valid -- Black-footed Ferret
  Mustela nivalis Linnaeus, 1766 -- valid -- belette pygmée, Least Weasel
  Mustela vison Schreber, 1777 -- invalid -- American mink, mink, vison d'Amérique
  Mustelidae Fischer, 1817 -- valid -- mustelids
  Myadestes Swainson, 1838 -- valid -- Hawaiian Thrushes, Solitaires
  Myadestes lanaiensis (S. B. Wilson, 1891) -- valid -- Oloma'o, Olomao
  Myadestes myadestinus (Stejneger, 1887) -- valid -- Kamao, Large Kauai Thrush
  Myadestes obscurus (Gmelin, 1789) -- valid -- 'Oma'o, Omao
  Myadestes palmeri (Rothschild, 1893) -- valid -- Puaiohi, Small Kauai Thrush
  Myadestes townsendi (Audubon, 1838) -- valid -- Clarín norteño, solitaire de Townsend, Townsend's Solitaire
  Mycteria Linnaeus, 1758 -- valid -- Wood Storks
  Mycteria americana Linnaeus, 1758 -- valid -- Cigüeña americana, Tantale d'Amérique, Wood Stork
  Myiagra Vigors & Horsfield, 1827 -- valid -- Broadbills, Flycatchers
  Myiagra erythrops Hartlaub & Finsch, 1868 -- valid -- Palau Broadbill, Palau Flycatcher
  Myiagra freycineti Oustalet, 1881 -- valid -- Guam Broadbill, Guam Flycatcher
  Myiagra oceanica Pucheran, 1853 -- valid -- Oceanic Flycatcher, Truk Broadbill
  Myiagra pluto Finsch, 1876 -- valid -- Pohnpei Broadbill, Pohnpei Flycatcher
  Myiarchus Cabanis, 1844 -- valid -- Crested Flycatchers
  Myiarchus antillarum (H. Bryant, 1866) -- valid -- Puerto Rican Flycatcher
  Myiarchus cinerascens (Lawrence, 1851) -- valid -- Ash-throated Flycatcher, Papamoscas cenizo, tyran à gorge cendrée
  Myiarchus crinitus (Linnaeus, 1758) -- valid -- Great Crested Flycatcher, Papamoscas viajero, tyran huppé
  Myiarchus nuttingi Ridgway, 1882 -- valid -- Nutting's Flycatcher, Papamoscas de Nutting
  Myiarchus sagrae (Gundlach, 1852) -- valid -- La Sagra's Flycatcher
  Myiarchus tuberculifer (Orbigny & Lafresnaye, 1837) -- valid -- Dusky-capped Flycatcher, Papamoscas triste
  Myiarchus tyrannulus (Statius Muller, 1776) -- valid -- Brown-crested Flycatcher, Papamoscas tirano
  Myioborus S. F. Baird, 1865 -- valid -- Painted Redstarts
  Myioborus miniatus (Swainson, 1827) -- valid -- Chipe de montaña, Paruline ardoisée, Slate-throated Redstart, Slate-throated Whitestart
  Myioborus pictus (Swainson, 1829) -- valid -- Chipe ala blanca, Painted Redstart, Painted Whitestart, Paruline à ailes blanches
  Myiodynastes Bonaparte, 1857 -- valid -- Sulphur-bellied Flycatchers
  Myiodynastes luteiventris P. L. Sclater, 1859 -- valid -- Papamoscas atigrado, Sulphur-bellied Flycatcher
  Myiopsitta Bonaparte, 1854 -- valid -- Monk Parakeets
  Myiopsitta monachus (Boddaert, 1783) -- valid -- Monk Parakeet
  Myocastor Kerr, 1792 -- valid -- nutrias
  Myocastor coypus (Molina, 1782) -- valid -- coypu, Coypu, nutria, nutria
  Myocastoridae Ameghino, 1902 -- valid -- nutrias
  Myotis Kaup, 1829 -- valid -- mouse-eared bats
  Myotis auriculus Baker and Stains, 1955 -- valid -- Miotis orejudo, Southwestern Myotis, southwestern myotis
  Myotis austroriparius (Rhoads, 1897) -- valid -- southeastern myotis, Southeastern Myotis
  Myotis californicus (Audubon and Bachman, 1842) -- valid -- California myotis, California Myotis, Californian Myotis, Miotis californiano
  Myotis ciliolabrum (Merriam, 1886) -- valid -- Miotis cara negra, small-footed myotis, western small-footed bat, Western Small-footed Myotis
  Myotis evotis (H. Allen, 1864) -- valid -- long-eared myotis, Long-eared Myotis, Miotis oreja larga
  Myotis fortidens Miller and G. M. Allen, 1928 -- valid -- cinnamon myotis, Cinnamon Myotis, Miotis canelo
  Myotis grisescens A. H. Howell, 1909 -- valid -- gray bat, gray myotis, Gray Myotis
  Myotis insularum (Dobson, 1878) -- valid -- insular myotis, Insular Myotis
  Myotis keenii (Merriam, 1895) -- valid -- Keen's myotis, Keen's Myotis
  Myotis leibii (Audubon and Bachman, 1842) -- valid -- chauve-souris pygmée, eastern small-footed bat, Eastern Small-footed Myotis, eastern small-footed myotis, small-footed myotis
  Myotis lucifugus (Le Conte, 1831) -- valid -- little brown bat, little brown myotis, Little Brown Myotis, Miotis norteamericano, petite chauve-souris brune
  Myotis septentrionalis (Trouessart, 1897) -- valid -- chauve-souris nordique, northern long-eared bat, Northern Myotis, northern myotis
  Myotis sodalis Miller and G. M. Allen, 1928 -- valid -- Indiana bat, Indiana Myotis
  Myotis thysanodes Miller, 1897 -- valid -- fringed myotis, Fringed Myotis, Miotis bordado
  Myotis velifer (J. A. Allen, 1890) -- valid -- cave myotis, Cave Myotis, Miotis mexicano
  Myotis volans (H. Allen, 1866) -- valid -- long-legged myotis, Long-legged Myotis, Miotis pata larga
  Myotis yumanensis (H. Allen, 1864) -- valid -- Miotis de Yuma, Yuma Myotis, Yuma myotis
  Myzomela Vigors & Horsfield, 1827 -- valid -- Cardinal Honeyeaters
  Myzomela cardinalis (Gmelin, 1788) -- valid -- Cardinal Honeyeater, Cardinal Myzomela
  Nactus Kluge, 1983 -- valid -- Hook-toed Geckos
  Nactus pelagicus (Girard, 1858) -- valid -- Pelagic Gecko
  Napaeozapus Preble, 1899 -- valid -- woodland jumping mice
  Nasua Storr, 1780 -- valid -- coatis
  Nasua nasua (Linnaeus, 1766) -- valid -- coati, South American Coati
  Necturus Rafinesque, 1819 -- valid -- Mudpuppies, Waterdogs, Waterdogs & Mudpuppies
  Neocrex P. L. Sclater & Salvin, 1869 -- valid -- Paint-billed Crakes
  Neocrex erythrops (P. L. Sclater, 1867) -- valid -- Paint-billed Crake
  Neofiber True, 1884 -- valid -- Round-tailed Muskrats
  Neofiber alleni True, 1884 -- valid -- Round-tailed Muskrat
  Neoseps Stejneger, 1910 -- valid -- Florida Sand Skinks
  Neoseps reynoldsi Stejneger, 1910 -- valid -- Florida Sand Skink, Sand Skink
  Neotoma Say and Ord, 1825 -- valid -- Packrats
  Neotoma albigula Hartley, 1894 -- valid -- Rata-cambalachera garganta blanca, White-throated Woodrat
  Neotoma cinerea (Ord, 1815) -- valid -- Bushy-tailed Woodrat
  Neotoma floridana (Ord, 1818) -- valid -- Eastern Woodrat
  Neotoma floridana floridana (Ord, 1818) -- invalid -- eastern woodrat
  Neotoma fuscipes Baird, 1857 -- valid -- Dusky-footed Woodrat, Rata-cambalachera patas oscuras
  Neotoma lepida Thomas, 1893 -- valid -- Desert Woodrat, Rata-cambalachera desértica
  Neotoma mexicana Baird, 1855 -- valid -- Mexican Woodrat, Rata-cambalachera mexicana
  Neotoma micropus Baird, 1855 -- valid -- Rata-cambalachera de pradera, Southern Plains Woodrat
  Neotoma stephensi Goldman, 1905 -- valid -- Stephen's Woodrat, Stephens's woodrat
  Nerodia Baird and Girard, 1853 -- valid -- North American Water Snakes, Water Snakes
  Nerodia clarkii (Baird and Girard, 1853) -- valid -- Salt Marsh Water Snake, Saltmarsh Snake
  Nerodia cyclopion (Duméril, Bibron and Duméril, 1854) -- valid -- Green Water Snake, Mississippi Green Water Snake
  Nerodia erythrogaster (Forster in Bossu, 1771) -- valid -- Culebra-de agua vientre claro, Plain-bellied Water Snake
  Nerodia fasciata (Linnaeus, 1766) -- valid -- Southern Water Snake
  Nerodia floridana (Goff, 1936) -- valid -- Florida Green Water Snake
  Nerodia harteri (Trapido, 1941) -- valid -- Brazos River Water Snake, Harter's Water Snake
  Nerodia harteri harteri (Trapido, 1941) -- invalid
  Nerodia paucimaculata (Tinkle and Conant, 1961) -- valid -- Concho Water Snake
  Nerodia rhombifera (Hallowell, 1852) -- invalid
  Nerodia sipedon (Linnaeus, 1758) -- valid -- couleuvre d'eau, Northern Water Snake
  Nerodia taxispilota (Holbrook, 1838) -- valid -- Brown Water Snake
  Nesochen Salvadori, 1895 -- invalid -- Hawaiian Geese
  Nesochen sandvicensis (Vigors, 1834) -- invalid -- Hawaiian Goose, Nene
  Nesospingus P. L. Sclater, 1885 -- valid -- Puerto Rican Tanagers
  Nesospingus speculiferus (Lawrence, 1875) -- valid -- Puerto Rican Tanager
  Neurotrichus Günther, 1880 -- valid -- American shrew-moles
  Neurotrichus gibbsii (Baird, 1858) -- valid -- American Shrew Mole, Gibbs's shrew mole, least shrew mole, Shrew-mole
  Noctilio Linnaeus, 1766 -- valid -- bulldog bats
  Noctilio leporinus (Linnaeus, 1758) -- valid -- greater bulldog bat, Greater Bulldog Bat, Murciélago-pescador mayor
  Noctilionidae Gray, 1821 -- valid -- bulldog bats
  Notiosorex Coues, 1877 -- valid -- desert shrews
  Notiosorex crawfordi (Coues, 1877) -- valid -- Crawford's Gray Shrew, Desert Shrew, gray shrew, Musaraña-desértica norteña
  Notophthalmus Rafinesque, 1820 -- valid -- Eastern Newts, North American Newts
  Notopteris Gray, 1859 -- valid -- long-tailed fruit bats
  Notopteris macdonaldi Gray, 1859 -- valid -- Fijian Long-tailed Fruit Bat, long-tailed fruit bat
  Nucifraga Brisson, 1760 -- valid -- Nutcrackers
  Nucifraga columbiana (A. Wilson, 1811) -- valid -- Cascanueces americano, Clark's Nutcracker
  Numenius Brisson, 1760 -- valid -- Curlews
  Numenius americanus Bechstein, 1812 -- valid -- Courlis à long bec, Long-billed Curlew, Zarapito pico largo
  Numenius arquata (Linnaeus, 1758) -- valid -- Courlis cendré, Eurasian Curlew
  Numenius borealis (J. R. Forster, 1772) -- valid -- Courlis esquimau, Eskimo Curlew, Zarapito boreal
  Numenius madagascariensis (Linnaeus, 1766) -- valid -- Courlis de Sibérie, Eastern Curlew, Far Eastern Curlew
  Numenius minutus Gould, 1841 -- valid -- Courlis nain, Little Curlew
  Numenius phaeopus (Linnaeus, 1758) -- valid -- Courlis corlieu, Whimbrel, Zarapito trinador
  Numenius tahitiensis (Gmelin, 1789) -- valid -- Bristle-thighed Curlew, Courlis d'Alaska
  Numenius tenuirostris Vieillot, 1817 -- valid -- Courlis à bec grêle, Slender-billed Curlew
  Numida Linnaeus, 1766 -- valid -- Guineafowl
  Numida meleagris (Linnaeus, 1758) -- valid -- Helmeted Guineafowl
  Numidinae -- invalid -- Guineafowl
  Nyctea Stephens, 1826 -- invalid -- Snowy Owls
  Nyctea scandiaca (Linnaeus, 1758) -- invalid -- harfang des neiges, snowy owl
  Nyctibiidae -- valid -- Potoos
  Nyctibius Vieillot, 1816 -- valid -- Potoos
  Nyctibius griseus (Gmelin, 1789) -- valid -- Bienparado norteño, Common Potoo
  Nycticeius Rafinesque, 1819 -- valid -- evening bats
  Nycticeius humeralis (Rafinesque, 1818) -- valid -- evening bat, Evening Bat, Murciélago-crepuscular americano
  Nycticorax T. Forster, 1817 -- valid -- Night-Herons
  Nycticorax caledonicus (Gmelin, 1789) -- valid -- Nankeen Night Heron, Rufous Night Heron
  Nycticorax nycticorax (Linnaeus, 1758) -- valid -- Bihoreau gris, Black-crowned Night Heron, Black-crowned Night-Heron, Pedrete corona negra
  Nyctidromus Gould, 1838 -- valid -- Pauraques
  Nyctidromus albicollis (Gmelin, 1789) -- valid -- Chotacabras pauraque, Common Pauraque, Pauraque
  Nyctinomops Miller, 1902 -- valid -- free-tailed bats
  Nyctinomops femorosaccus (Merriam, 1889) -- valid -- Murciélago-cola suelta de bolsa, Pocketed Free-tailed Bat, pocketed free-tailed bat
  Nyctinomops macrotis (Gray, 1840) -- valid -- big free-tailed bat, Big Free-tailed Bat, Murciélago-cola suelta mayor
  Oceanites Keyserling & J. H. Blasius, 1840 -- valid -- Wilson's Storm-Petrels
  Oceanites oceanicus (Kuhl, 1820) -- valid -- Océanite de Wilson, Paíño de Wilson, Wilson's Storm Petrel, Wilson's Storm-Petrel
  Oceanodroma Reichenbach, 1853 -- valid -- Dark Storm Petrels
  Oceanodroma castro (Harcourt, 1851) -- valid -- Band-rumped Storm Petrel, Band-rumped Storm-Petrel, Océanite de Castro, Paíño de Harcourt
  Oceanodroma furcata (Gmelin, 1789) -- valid -- Fork-tailed Storm Petrel, Fork-tailed Storm-Petrel, Océanite à queue fourchue
  Oceanodroma homochroa (Coues, 1864) -- valid -- Ashy Storm Petrel, Ashy Storm-Petrel, Océanite cendré, Paíño cenizo
  Oceanodroma leucorhoa (Vieillot, 1818) -- valid -- Leach's Storm Petrel, Leach's Storm-Petrel, Océanite cul-blanc, Paíño de Leach
  Oceanodroma melania (Bonaparte, 1854) -- valid -- Black Storm Petrel, Black Storm-Petrel, Océanite noir, Paíño negro
  Oceanodroma microsoma (Coues, 1864) -- valid -- Least Storm Petrel, Least Storm-Petrel, Océanite minute, Paíño mínimo
  Oceanodroma tethys (Bonaparte, 1852) -- valid -- Océanite téthys, Paíño de Galápagos, Wedge-rumped Storm Petrel, Wedge-rumped Storm-Petrel
  Oceanodroma tristrami Salvin, 1896 -- valid -- Océanite de Tristram, Sooty Storm-Petrel, Tristram's Storm Petrel, Tristram's Storm-Petrel
  Ochotona Link, 1795 -- valid -- Pikas
  Ochotona collaris (Nelson, 1893) -- valid -- Collared Pika
  Ochotona princeps (Richardson, 1828) -- valid -- American Pika, pika
  Ochotonidae Thomas, 1897 -- valid -- Pikas
  Ochrotomys Osgood, 1909 -- valid -- Golden Mice
  Ochrotomys nuttalli (Harlan, 1832) -- valid -- Golden Mouse
  Odobenidae Allen, 1880 -- valid -- walruses
  Odobenus Brisson, 1762 -- valid -- walruses
  Odobenus rosmarus (Linnaeus, 1758) -- valid -- morse, Walrus
  Odocoileus Rafinesque, 1832 -- valid -- mule deer, white-tailed deer
  Odocoileus hemionus (Rafinesque, 1817) -- valid -- mule deer, Mule Deer, Venado bura
  Odocoileus virginianus (Zimmermann, 1780) -- valid -- cerf de Virginie, Venado cola blanca, white-tailed deer, White-tailed Deer
  Odocoileus virginianus virginianus (Zimmermann, 1780) -- valid -- white-tailed deer
  Odontoceti Flower, 1867 -- valid -- toothed whales
  Odontophoridae -- valid -- New World Quails
  Oenanthe Vieillot, 1816 -- valid -- Wheatears
  Oenanthe oenanthe (Linnaeus, 1758) -- valid -- Collalba norteña, Northern Wheatear, traquet motteux
  Ondatra Link, 1795 -- valid -- Muskrat, muskrats
  Ondatra zibethicus (Linnaeus, 1766) -- valid -- Common Muskrat, Muskbeaver, Muskrat, rat musqué
  Onychomys Baird, 1857 -- valid -- Grasshopper Mice
  Onychomys arenicola Mearns, 1896 -- valid -- Chihuahuan Grasshopper Mouse, Mearns' Grasshopper Mouse, Mearns's Grasshopper Mouse, Ratón-saltamontes arenero
  Onychomys leucogaster (Wied-Neuwied, 1841) -- valid -- Northern Grasshopper Mouse, Ratón-saltamontes norteño
  Onychomys torridus (Coues, 1874) -- valid -- Ratón-saltamontes sureño, Southern Grasshopper Mouse
  Opheodrys Fitzinger, 1843 -- valid -- Green Snakes, Greensnakes
  Opheodrys aestivus (Linnaeus, 1766) -- valid -- Culebra-verde rugosa, Rough Green Snake, Rough Greensnake
  Ophisaurus Daudin, 1803 -- valid -- Glass Lizards
  Ophisaurus attenuatus Cope, 1880 -- valid -- Slender Glass Lizard
  Ophisaurus compressus Cope, 1900 -- valid -- Island Glass Lizard
  Ophisaurus ventralis (Linnaeus, 1766) -- valid -- Eastern Glass Lizard
  Oporornis S. F. Baird, 1858 -- valid -- Mourning Warblers
  Oporornis agilis (A. Wilson, 1812) -- valid -- Connecticut Warbler, Paruline à gorge grise
  Oporornis formosus (A. Wilson, 1811) -- invalid -- Chipe patilludo, Kentucky Warbler, paruline du Kentucky
  Oporornis philadelphia (A. Wilson, 1810) -- invalid -- Chipe enlutado, Mourning Warbler, paruline triste
  Oporornis tolmiei (J. K. Townsend, 1839) -- invalid -- Chipe de Tolmie, MacGillivray's Warbler
  Orcinus Fitzinger, 1860 -- valid -- killer whales
  Orcinus orca (Linnaeus, 1758) -- valid -- épaulard, Killer Whale, orca, Orca común
  Oreamnos Rafinesque, 1817 -- valid -- mountain goats
  Oreamnos americanus (Blainville, 1816) -- valid -- mountain goat, Mountain Goat, Rocky Mountain goat
  Oreomystis Stejneger, 1903 -- valid -- Oreomystine Creepers
  Oreomystis bairdi (Stejneger, 1887) -- valid -- Akikiki, Kauai Creeper
  Oreomystis mana (S. B. Wilson, 1891) -- invalid -- Hawaii Creeper
  Oreortyx S. F. Baird, 1858 -- valid -- Mountain Quails
  Oreortyx pictus (Douglas, 1829) -- valid -- Codorniz de montaña, Mountain Quail
  Oreoscoptes S. F. Baird, 1858 -- valid -- Sage Thrashers
  Oreoscoptes montanus (J. K. Townsend, 1837) -- valid -- Cuitlacoche de chías, Sage Thrasher
  Ortalis Merrem, 1786 -- valid -- Chachalacas
  Ortalis vetula (Wagler, 1830) -- valid -- Chachalaca vetula, Plain Chachalaca
  Orthorhyncus Lacepede, 1799 -- valid -- Crested Hummingbirds
  Orthorhyncus cristatus (Linnaeus, 1758) -- valid -- Antillean Crested Hummingbird
  Oryctolagus Lilljeborg, 1873 -- valid -- Old World rabbits
  Oryctolagus cuniculus (Linnaeus, 1758) -- valid -- European Rabbit
  Oryzomys Baird, 1857 -- valid -- Rice Rats
  Oryzomys couesi (Alston, 1877) -- valid -- Coues' Oryzomys, Coues' Rice Rat, Coues's Rice Rat, Rata-arrocera de Coues
  Oryzomys palustris (Harlan, 1837) -- valid -- Marsh Oryzomys, Marsh Rice Rat, Rata-arrocera de pantano
  Oryzomys palustris palustris (Harlan, 1837) -- invalid -- Marsh Rice Rat
  Otariidae Gray, 1825 -- valid -- eared seals, sea lions
  Otus Pennant, 1769 -- valid -- Scops-Owls
  Otus asio (Linnaeus, 1758) -- invalid -- Eastern Screech-Owl, petit-duc maculé, Tecolote oriental
  Otus flammeolus (Kaup, 1852) -- valid -- Flammulated Owl, Tecolote ojo oscuro
  Otus nudipes (Daudin, 1800) -- invalid -- Puerto Rican Screech-Owl
  Otus sunia (Hodgson, 1836) -- valid -- Oriental Scops Owl, Oriental Scops-Owl
  Otus trichopsis (Wagler, 1832) -- invalid -- Tecolote rítmico, Whiskered Screech-Owl
  Ovibos Blainville, 1816 -- valid -- muskoxen
  Ovibos moschatus (Zimmermann, 1780) -- valid -- boeuf musqué, Muskox, muskox, oomingmak
  Ovis Linnaeus, 1758 -- valid -- sheep
  Ovis canadensis Shaw, 1804 -- valid -- bighorn sheep, Bighorn Sheep, Borrego cimarrón
  Ovis dalli Nelson, 1884 -- valid -- dall sheep, Dall's Sheep, Dall's sheep, Fannin's sheep, Stone's sheep
  Oxybelis Wagler, 1830 -- valid -- Vine Snakes, Vinesnakes
  Oxybelis aeneus (Wagler, 1824) -- valid -- Brown Vine Snake, Brown Vinesnake, Culebra-bejuquilla mexicana
  Oxyura Bonaparte, 1828 -- valid -- Stiff-tailed Ducks
  Oxyura dominica (Linnaeus, 1766) -- invalid -- Masked Duck, Pato enmascarado
  Oxyura jamaicensis (Gmelin, 1789) -- valid -- érismature rousse, Pato tepalcate, Ruddy Duck
  Pachyramphus G. R. Gray, 1840 -- valid -- Becards
  Pachyramphus aglaiae (Lafresnaye, 1839) -- valid -- Mosquero-cabezón degollado, Rose-throated Becard
  Padda Reichenbach, 1850 -- invalid
  Padda oryzivora (Linnaeus, 1758) -- invalid -- Java Sparrow
  Pagophila eburnea (Phipps, 1774) -- valid -- Ivory Gull, Mouette blanche
  Palmeria Rothschild, 1893 -- valid -- Crested Honeycreepers
  Palmeria dolei (S. B. Wilson, 1891) -- valid -- 'Akohekohe, Akohekohe, Crested Honeycreeper
  Pandion Savigny, 1809 -- valid -- Ospreys
  Pandion haliaetus (Linnaeus, 1758) -- valid -- Balbuzard pêcheur, Gavilán pescador, Osprey, Western Osprey
  Panthera Oken, 1816 -- valid -- roaring cats
  Panthera onca (Linnaeus, 1758) -- valid -- Jaguar, Jaguar
  Pappogeomys Merriam, 1895 -- valid -- Mexican Pocket Gophers, tuzas
  Pappogeomys castanops (Baird, 1852) -- invalid -- Yellow-faced Pocket Gopher
  Parabuteo Ridgway, 1874 -- valid -- Harris' Hawks
  Parabuteo unicinctus (Temminck, 1824) -- valid -- Aguililla rojinegra, Buse de Harris, Harris' Hawk, Harris's Hawk
  Parascalops True, 1894 -- valid -- hairy-tailed moles
  Parascalops breweri (Bachman, 1842) -- valid -- Brewer's mole, Hairy-tailed Mole, taupe à queue velue
  Pardirallus Bonaparte, 1856 -- valid -- Spotted Rails
  Pardirallus maculatus (Boddaert, 1783) -- valid -- Rascón pinto, Spotted Rail
  Paridae Vigors, 1825 -- valid -- Chickadees, Titmice, Tits
  Paroaria Bonaparte, 1832 -- valid -- Neotropical Cardinals
  Paroaria capitata (d'Orbigny & Lafresnaye, 1837) -- valid -- Yellow-billed Cardinal
  Paroaria coronata (J. F. Miller, 1776) -- valid -- Red-crested Cardinal
  Paroreomyza Perkins, 1901 -- valid -- Paroreomyzine Creepers
  Paroreomyza flammea (S. B. Wilson, 1890) -- valid -- Kakawahie, Molokai Creeper
  Paroreomyza maculata (Cabanis, 1850) -- valid -- Alauwahio, Oahu Alauahio, Oahu Creeper
  Paroreomyza montana (S. B. Wilson, 1890) -- valid -- Maui Alauahio, Maui Creeper
  Parula Bonaparte, 1838 -- invalid -- Parulas
  Parula americana (Linnaeus, 1758) -- invalid -- Northern Parula, Parula norteña, paruline à collier
  Parula pitiayumi (Vieillot, 1817) -- invalid -- Parula tropical, Tropical Parula
  Parus Linnaeus, 1758 -- valid -- Titmice, Tits
  Parus atricapillus Linnaeus, 1766 -- invalid -- Black-capped Chickadee
  Parus bicolor Linnaeus, 1766 -- invalid -- Carbonero cresta negra, Tufted Titmouse
  Parus carolinensis Audubon, 1834 -- invalid -- Carolina Chickadee
  Parus cinctus Boddaert, 1783 -- invalid -- Siberian Tit
  Parus gambeli Ridgway, 1886 -- invalid -- Carbonero ceja blanca, Mountain Chickadee
  Parus hudsonicus J. R. Forster, 1772 -- invalid -- Boreal Chickadee
  Parus inornatus Gambel, 1845 -- invalid -- Carbonero sencillo, Plain Titmouse
  Parus rufescens J. K. Townsend, 1837 -- invalid -- Chestnut-backed Chickadee
  Parus sclateri O. Kleinschmidt, 1897 -- invalid -- Carbonero mexicano, Mexican Chickadee
  Parus wollweberi (Bonaparte, 1850) -- invalid -- Bridled Titmouse, Carbonero embridado
  Passer Brisson, 1760 -- valid -- Old World Sparrows
  Passer domesticus (Linnaeus, 1758) -- valid -- Gorrión casero, House Sparrow, moineau domestique
  Passer montanus (Linnaeus, 1758) -- valid -- Eurasian Sparrow, Eurasian Tree Sparrow
  Passerculus Bonaparte, 1838 -- valid -- Savannah Sparrows
  Passerculus sandwichensis (J. F. Gmelin, 1789) -- valid -- bruant des prés, Gorrión sabanero, Savannah Sparrow
  Passerella Swainson, 1837 -- valid -- Fox Sparrows
  Passerella iliaca (Merrem, 1786) -- valid -- bruant fauve, Fox Sparrow, Gorrión rascador, Red Fox Sparrow
  Passeriformes -- valid -- passereaux, Perching Birds
  Passerina Vieillot, 1816 -- valid -- Varied Buntings
  Passerina amoena (Say, 1822) -- valid -- Colorín lázuli, Lazuli Bunting
  Passerina ciris (Linnaeus, 1758) -- valid -- Colorín sietecolores, Painted Bunting
  Passerina cyanea (Linnaeus, 1766) -- valid -- Colorín azul, Indigo Bunting, passerin indigo
  Passerina versicolor (Bonaparte, 1838) -- valid -- Colorín morado, Varied Bunting
  Pavo Linnaeus, 1758 -- valid -- Peafowl
  Pavo cristatus Linnaeus, 1758 -- valid -- Common Peafowl, Indian Peafowl
  Pedioecetes Baird, 1858 -- invalid
  Pedioecetes phasianellus (Linnaeus, 1758) -- invalid -- Sharp-tailed Grouse
  Pelagodroma Reichenbach, 1853 -- valid -- White-faced Storm Petrel
  Pelagodroma marina (Latham, 1790) -- valid -- Océanite frégate, White-faced Storm Petrel, White-faced Storm-Petrel
  Pelamis Daudin, 1803 -- valid -- Yellow-bellied Sea Snakes, Yellow-bellied Seasnakes
  Pelamis platurus (Linnaeus, 1766) -- invalid -- Serpiente-marina pelágica, Yellow-bellied Sea Snake, Yellow-bellied Seasnake
  Pelecanidae Rafinesque, 1815 -- valid -- Pelicans
  Pelecaniformes -- valid -- Herons, hérons, ibis, Ibises, Pelicans, pélicans
  Pelecanus Linnaeus, 1758 -- valid -- Pelicans
  Pelecanus conspicillatus Temminck, 1824 -- valid -- Australian Pelican
  Pelecanus erythrorhynchos Gmelin, 1789 -- valid -- American White Pelican, Pélican d'Amérique, Pelícano blanco
  Pelecanus occidentalis Linnaeus, 1766 -- valid -- Brown Pelican, Pélican brun, Pelícano pardo
  Peltophryne lemur Cope, 1869 -- valid -- Puerto Rican Crested Toad, Ridge-headed Toad
  Peponocephala Nishiwaki and Norris, 1966 -- valid -- melon-headed whales
  Peponocephala electra (Gray, 1846) -- valid -- Calderón, Melon-headed Whale
  Perdix Brisson, 1760 -- valid -- Gray Partridges
  Perdix perdix (Linnaeus, 1758) -- valid -- Gray Partridge, Grey Partridge, perdrix grise
  Perisoreus Bonaparte, 1831 -- valid -- Gray Jays
  Perisoreus canadensis (Linnaeus, 1766) -- valid -- Gray Jay, Grey Jay, mésangeai du Canada
  Perochirus Boulenger, 1885 -- valid -- Micronesian Geckos, Polynesian Geckos
  Perochirus ateles (Duméril, 1856) -- valid -- Fragile Micronesian Gecko, Fragile Polynesian Gecko
  Perochirus scutellatus (Fischer, 1882) -- valid -- Giant Micronesian Gecko
  Perognathus Wied-Neuwied, 1839 -- valid -- pocket mice, Silky Pocket Mice
  Perognathus alticola Rhoads, 1894 -- invalid -- White-eared Pocket Mouse
  Perognathus amplus Osgood, 1900 -- valid -- Arizona Pocket Mouse, Ratón-de abazones de Arizona
  Perognathus baileyi Merriam, 1894 -- invalid -- Bailey's pocket mouse
  Perognathus californicus Merriam, 1889 -- invalid -- California pocket mouse
  Perognathus fallax Merriam, 1889 -- invalid -- San Diego pocket mouse
  Perognathus fasciatus Wied-Neuwied, 1839 -- valid -- Olive-backed Pocket Mouse
  Perognathus flavescens Merriam, 1889 -- valid -- Plains Pocket Mouse, Ratón-de abazones de pradera
  Perognathus flavus Baird, 1855 -- valid -- Ratón-de abazones sedoso, Silky Pocket Mouse
  Perognathus formosus Merriam, 1889 -- invalid -- long-tailed pocket mouse
  Perognathus hispidus Baird, 1858 -- invalid -- hispid pocket mouse
  Perognathus inornatus Merriam, 1889 -- valid -- San Joaquin Pocket Mouse
  Perognathus intermedius Merriam, 1889 -- invalid -- rock pocket mouse
  Perognathus longimembris (Coues, 1875) -- valid -- Little Pocket Mouse, Ratón-de abazones menor
  Perognathus nelsoni Merriam, 1894 -- invalid -- Nelson's pocket mouse
  Perognathus parvus (Peale, 1848) -- valid -- Great Basin Pocket Mouse
  Perognathus penicillatus Woodhouse, 1852 -- invalid -- desert pocket mouse
  Perognathus spinatus Merriam, 1889 -- invalid -- spiny pocket mouse
  Perognathus xanthonotus Grinnell, 1912 -- invalid -- Yellow-eared Pocket Mouse
  Peromyscus Gloger, 1841 -- valid -- Deer Mice, White-footed Mice
  Peromyscus attwateri J. A. Allen, 1895 -- valid -- Attwater's Mouse, Texas Deermouse, Texas mouse
  Peromyscus boylii (Baird, 1855) -- valid -- Brush Deermouse, Brush Mouse, Ratón arbustero
  Peromyscus californicus (Gambel, 1848) -- valid -- California Deermouse, California Mouse, Ratón californiano
  Peromyscus crinitus (Merriam, 1891) -- valid -- Canyon Deermouse, Canyon Mouse, Ratón de cañada
  Peromyscus difficilis (J. A. Allen, 1891) -- valid -- Ratón de roca, Rock Mouse, Southern Rock Deermouse, Zacatecan Deer Mouse
  Peromyscus eremicus (Baird, 1857) -- valid -- Cactus Deermouse, Cactus Mouse, Ratón de cactus
  Peromyscus gossypinus (Le Conte, 1853) -- valid -- Cotton Deermouse, Cotton Mouse
  Peromyscus gossypinus gossypinus (Le Conte, 1853) -- invalid -- cotton mouse
  Peromyscus leucopus (Rafinesque, 1818) -- valid -- souris à pattes blanches, White-footed Deermouse, White-footed Mouse
  Peromyscus maniculatus (Wagner, 1845) -- valid -- Deer Mouse, North American Deermouse, Ratón norteamericano, souris sylvestre
  Peromyscus melanotis J. A. Allen and Chapman, 1897 -- valid -- Black-eared Deermouse, Black-eared Mouse, Ratón orejas negras
  Peromyscus merriami Mearns, 1896 -- valid -- Merriam's Deermouse, Merriam's Mouse, Mesquite Mouse, Ratón de Merriam
  Peromyscus pectoralis Osgood, 1904 -- valid -- Ratón tobillo blanco, White-ankled Deermouse, White-ankled Mouse
  Peromyscus polionotus (Wagner, 1843) -- valid -- Oldfield Deermouse, Oldfield Mouse
  Peromyscus polionotus polionotus (Wagner, 1843) -- invalid -- Oldfield Mouse
  Peromyscus sitkensis Merriam, 1897 -- invalid -- Sitka mouse
  Peromyscus truei (Shufeldt, 1885) -- valid -- Piñon Deermouse, piñon mouse, Pinyon Mouse, Ratón piñonero
  Petrogale Gray, 1837 -- valid -- rock wallabies
  Petrogale penicillata (Gray, 1827) -- valid -- brush-tailed rock wallaby, Brush-tailed Rock-wallaby
  Petrosaurus Boulenger, 1885 -- valid -- Rock Lizards
  Petrosaurus mearnsi (Stejneger, 1894) -- valid -- Banded Rock Lizard, Lagartija-de piedra rayada
  Peucedramus Coues, 1875 -- valid -- Olive Warblers
  Peucedramus taeniatus (Du Bus de Gisignies, 1847) -- valid -- Ocotero enmascarado, Olive Warbler
  Phaeognathus hubrichti Highton, 1961 -- valid -- Red Hills Salamander
  Phaeoprogne Baird, 1865 -- invalid
  Phaeoprogne tapera (Linnaeus, 1766) -- invalid -- Brown-chested Martin
  Phaethon Linnaeus, 1758 -- valid -- Tropicbirds
  Phaethon aethereus Linnaeus, 1758 -- valid -- Phaéton à bec rouge, Rabijunco pico rojo, Red-billed Tropicbird
  Phaethon lepturus Daudin, 1802 -- valid -- Phaéton à bec jaune, Rabijunco cola blanca, White-tailed Tropicbird
  Phaethon rubricauda Boddaert, 1783 -- valid -- Phaéton à brins rouges, Rabijunco cola roja, Red-tailed Tropicbird
  Phaethontidae J. F. von Brandt, 1840 -- valid -- Tropicbirds
  Phainopepla S. F. Baird, 1858 -- valid -- Phainopeplas
  Phainopepla nitens (Swainson, 1838) -- valid -- Capulinero negro, Phainopepla
  Phalacrocoracidae Reichenbach, 1849 -- valid -- Cormorants, Shags
  Phalacrocorax Brisson, 1760 -- valid -- Cormorants
  Phalacrocorax auritus (Lesson, 1831) -- valid -- Cormoran à aigrettes, Cormorán orejudo, Double-crested Cormorant
  Phalacrocorax carbo (Linnaeus, 1758) -- valid -- Grand Cormoran, Great Cormorant
  Phalacrocorax melanoleucos (Vieillot, 1817) -- invalid -- Little Pied Cormorant
  Phalacrocorax olivaceus (Humboldt, 1905) -- invalid
  Phalacrocorax pelagicus Pallas, 1811 -- valid -- Cormorán pelágico, Cormoran pélagique, Pelagic Cormorant
  Phalacrocorax penicillatus (Brandt, 1837) -- valid -- Brandt's Cormorant, Cormoran de Brandt, Cormorán de Brandt
  Phalacrocorax urile (Gmelin, 1789) -- valid -- Cormoran à face rouge, Red-faced Cormorant
  Phalaenoptilus Ridgway, 1880 -- valid -- Poorwills
  Phalaenoptilus nuttallii (Audubon, 1844) -- valid -- Common Poorwill, Tapacamino tevíi
  Phalaropus Brisson, 1760 -- valid -- Phalaropes
  Phalaropus fulicarius (Linnaeus, 1758) -- valid -- Falaropo pico grueso, Phalarope à bec large, Red Phalarope
  Phalaropus lobatus (Linnaeus, 1758) -- valid -- Falaropo cuello rojo, Phalarope à bec étroit, Red-necked Phalarope
  Phalaropus tricolor (Vieillot, 1819) -- valid -- Falaropo pico largo, Phalarope de Wilson, Wilson's Phalarope
  Phasianidae -- valid -- cailles, faisans, Grouse, Partridges, Pheasants, Quail, Turkeys
  Phasianinae -- valid -- Pheasants
  Phasianus Linnaeus, 1758 -- valid -- Pheasants
  Phasianus colchicus Linnaeus, 1758 -- valid -- Common Pheasant, faisan de chasse, Faisán de collar, Ring-necked Pheasant
  Phenacomys Merriam, 1889 -- valid -- Heather Voles
  Phenacomys intermedius Merriam, 1889 -- valid -- Heather Vole, phénacomys, Western Heather Vole
  Pheucticus Reichenbach, 1850 -- valid -- Cardinal-Grosbeaks
  Pheucticus ludovicianus (Linnaeus, 1766) -- valid -- cardinal à poitrine rose, Picogordo pecho rosa, Rose-breasted Grosbeak
  Pheucticus melanocephalus (Swainson, 1827) -- valid -- Black-headed Grosbeak, Picogordo tigrillo
  Philodice Mulsant & Verreaux, 1866 -- invalid
  Philomachus Merrem, 1804 -- valid -- Ruffs
  Philomachus pugnax (Linnaeus, 1758) -- valid -- combatant varié, Combattant varié, Ruff
  Phoca Linnaeus, 1758 -- valid -- hair seals, harbor seals
  Phoca fasciata Zimmermann, 1783 -- invalid -- ribbon seal
  Phoca groenlandica Erxleben, 1777 -- invalid -- harp seal, phoque du Groenland
  Phoca hispida Schreber, 1775 -- invalid -- phoque annelé, ringed seal
  Phoca largha Pallas, 1811 -- valid -- Spotted Seal
  Phoca vitulina Linnaeus, 1758 -- valid -- Foca común, Harbor Seal, phoque commun
  Phocidae Gray, 1821 -- valid -- earless seals, true seals
  Phocoena G. Cuvier, 1816 -- valid -- common porpoises, harbor porpoises
  Phocoena phocoena (Linnaeus, 1758) -- valid -- common porpoise, Harbor Porpoise, marsouin commun
  Phocoenoides Andrews, 1911 -- valid -- Dall's porpoises
  Phoenicopteridae Bonaparte, 1831 -- valid -- Flamingos
  Phoenicopteriformes -- valid -- flamants, Flamingos
  Phoenicopterus Linnaeus, 1758 -- valid -- Greater Flamingos
  Phoenicopterus ruber Linnaeus, 1758 -- valid -- American Flamingo, Flamant des Caraïbes, flamant rose, Flamenco americano, Greater Flamingo
  Phrynosoma Wiegmann, 1828 -- valid -- Horned Lizards
  Phrynosoma cornutum (Harlan, 1825) -- valid -- Lagartija-cornuda texana, Texas Horned Lizard
  Phrynosoma coronatum (Blainville, 1835) -- valid -- Coast Horned Lizard, Lagartija-cornuda de litoral
  Phrynosoma douglassii (Bell, 1829) -- invalid -- Short-horned Lizard
  Phrynosoma mcallii (Hallowell, 1852) -- valid -- Flat-tailed Horned Lizard, Lagartija-cornuda cola plana
  Phrynosoma modestum Girard, 1852 -- valid -- Lagartija-cornuda cola redonda, Round-tailed Horned Lizard
  Phrynosoma platyrhinos Girard, 1852 -- valid -- Desert Horned Lizard, Lagartija-cornuda de desierto
  Phrynosoma solare Gray, 1845 -- valid -- Lagartija-cornuda real, Regal Horned Lizard
  Phyllodactylus Gray, 1828 -- valid -- Leaf-toed Geckos
  Phyllodactylus wirshingi Kerster and H. Smith, 1955 -- valid -- Greater Antillean Leaf-toed Gecko
  Phyllodactylus xanti Cope, 1863 -- valid -- Salamanquesa del Cabo, Xantus Leaf-toed Gecko
  Phyllorhynchus Stejneger, 1890 -- valid -- Leaf-nosed Snakes
  Phyllorhynchus browni Stejneger, 1890 -- valid -- Culebra-nariz lanceolada ensillada, Saddled Leaf-nosed Snake
  Phyllorhynchus decurtatus (Cope, 1868) -- valid -- Culebra-nariz lanceolada pinta, Spotted Leaf-nosed Snake
  Phylloscopus F. Boie, 1826 -- valid -- Willow Warblers
  Phylloscopus borealis (J. H. Blasius, 1858) -- valid -- Arctic Warbler
  Phylloscopus fuscatus (Blyth, 1842) -- valid -- Dusky Warbler
  Phylloscopus sibilatrix (Bechstein, 1793) -- invalid -- Wood Warbler
  Phyllostomidae Gray, 1825 -- valid -- New World leaf-nosed bats
  Physeter Linnaeus, 1758 -- valid -- sperm whales
  Physeter catodon Linnaeus, 1758 -- invalid -- Sperm Whale
  Physeteridae Gray, 1821 -- valid -- sperm whales
  Pica Brisson, 1760 -- valid -- Magpies
  Pica nuttalli (Audubon, 1837) -- valid -- Yellow-billed Magpie
  Pica pica (Linnaeus, 1758) -- valid -- Black-billed Magpie, Eurasian Magpie, pie bavarde
  Picidae -- valid -- fourmiliers, pic-bois, Woodpeckers, Wrynecks
  Piciformes -- valid -- pic-bois, Woodpeckers
  Picoides Lacepede, 1799 -- valid -- Pied Woodpeckers
  Picoides albolarvatus (Cassin, 1850) -- valid -- White-headed Woodpecker
  Picoides arcticus (Swainson, 1832) -- valid -- Black-backed Woodpecker, pic à dos noir
  Picoides borealis (Vieillot, 1809) -- valid -- Red-cockaded Woodpecker
  Picoides nuttallii (Gambel, 1843) -- valid -- Carpintero californiano, Nuttall's Woodpecker
  Picoides pubescens (Linnaeus, 1766) -- valid -- Carpintero velloso-menor, Downy Woodpecker, pic mineur
  Picoides scalaris (Wagler, 1829) -- valid -- Carpintero mexicano, Ladder-backed Woodpecker
  Picoides stricklandi (Malherbe, 1845) -- valid -- Carpintero de Strickland, Strickland's Woodpecker
  Picoides tridactylus (Linnaeus, 1758) -- valid -- Eurasian Three-toed Woodpecker, pic tridactyle, Three-toed Woodpecker
  Picoides villosus (Linnaeus, 1766) -- valid -- Carpintero velloso-mayor, Hairy Woodpecker, pic chevelu
  Pinguinus Bonnaterre, 1791 -- valid -- Great Auks
  Pinguinus impennis (Linnaeus, 1758) -- valid -- Grand Pingouin, Great Auk
  Pinicola Vieillot, 1808 -- valid -- Pine Grosbeaks
  Pinicola enucleator (Linnaeus, 1758) -- valid -- durbec des sapins, Pine Grosbeak
  Pipilo Vieillot, 1816 -- valid -- Towhees
  Pipilo aberti S. F. Baird, 1852 -- invalid -- Abert's Towhee, Toquí enmascarado
  Pipilo chlorurus (Audubon, 1839) -- valid -- Green-tailed Towhee, tohi à queue verte, Toquí cola verde
  Pipilo erythrophthalmus (Linnaeus, 1758) -- valid -- Eastern Towhee, Rufous-sided Towhee, tohi à flancs roux, Toquí pinto
  Pipilo fuscus Swainson, 1827 -- invalid -- Brown Towhee, Canyon Towhee, Toquí pardo
  Pipistrellus Kaup, 1829 -- valid -- pipistrelles
  Pipistrellus hesperus (H. Allen, 1864) -- invalid -- Pipistrelo del oeste americano, Western Pipistrelle
  Pipistrellus subflavus (F. Cuvier, 1832) -- invalid -- Eastern Pipistrelle, pipistrelle de l'est, Pipistrelo del este americano
  Piranga Vieillot, 1808 -- valid -- Northern Tanagers
  Piranga bidentata Swainson, 1827 -- valid -- Flame-colored Tanager, Tángara dorso rayado
  Piranga flava (Vieillot, 1822) -- valid -- Hepatic Tanager, Red Tanager, Tángara encinera
  Piranga ludoviciana (A. Wilson, 1811) -- valid -- tangara à tête rouge, Tángara capucha roja, Western Tanager
  Piranga olivacea (J. F. Gmelin, 1789) -- valid -- Scarlet Tanager, tangara écarlate, Tángara escarlata
  Piranga rubra (Linnaeus, 1758) -- valid -- Summer Tanager, Tángara roja, tangara vermillon
  Pitangus Swainson, 1827 -- valid -- Kiskadees
  Pitangus sulphuratus (Linnaeus, 1766) -- valid -- Great Kiskadee, Luis bienteveo
  Pitohui Lesson, 1831 -- valid -- Morning Birds
  Pitohui tenebrosus (Hartlaub & Finsch, 1868) -- invalid -- Palau Morning Bird
  Pituophis Holbrook, 1842 -- valid -- Bullsnakes, Gopher Snakes, Pine Snakes, Pinesnakes
  Pituophis melanoleucus (Daudin, 1803) -- valid -- Culebra-sorda toro, Pine Snake, Pinesnake
  Plecotus E. Geoffroy, 1818 -- valid -- big-eared bats
  Plecotus rafinesquii Lesson, 1827 -- invalid -- Rafinesque's big-eared bat
  Plecotus townsendii Cooper, 1837 -- invalid -- Townsend's big-eared bat
  Plectrophenax Stejneger, 1882 -- valid -- Snow Buntings
  Plectrophenax hyperboreus Ridgway, 1884 -- valid -- McKay's Bunting
  Plectrophenax nivalis (Linnaeus, 1758) -- valid -- bruant des neiges, Snow Bunting
  Plegadis Kaup, 1829 -- valid -- Glossy Ibises
  Plegadis falcinellus (Linnaeus, 1766) -- valid -- Glossy Ibis, Ibis cara oscura, Ibis falcinelle
  Plethodon cinereus (Green, 1818) -- valid -- Eastern Red-backed Salamander, Red-backed Salamander, Redback Salamander, salamandre rayée
  Plethodon dorsalis Cope, 1889 -- valid -- Northern Zigzag Salamander, Zig-zag Salamander, Zigzag Salamander
  Plethodon fourchensis Duncan and Highton, 1979 -- valid -- Fourche Mountain Salamander
  Plethodon glutinosus (Green, 1818) -- valid -- Northern Slimy Salamander, Slimy Salamander
  Plethodon jordani Blatchley, 1901 -- valid -- Appalachian Salamander, Jordan's Salamander, Red-cheeked Salamander
  Plethodon kentucki Mittleman, 1951 -- valid -- Cumberland Plateau Salamander, Kentucky Salamander
  Plethodon nettingi Green, 1938 -- valid -- Cheat Mountain Salamander
  Plethodon punctatus Highton, 1972 -- valid -- Cow Knob Salamander, White Spotted Salamander, White-spotted Salamander
  Plethodon shenandoah Highton and Worthington, 1967 -- valid -- Shenandoah Salamander
  Plethodon websteri Highton, 1979 -- valid -- Webster's Salamander
  Plethodontidae Gray, 1850 -- valid -- Lungless Salamanders
  Ploceidae Sundevall, 1836 -- valid -- Bishops, Weavers, Widowbirds
  Pluvialis Brisson, 1760 -- valid -- Golden-Plovers
  Pluvialis apricaria (Linnaeus, 1758) -- valid -- European Golden Plover, European Golden-Plover, Greater Golden-Plover, Pluvier doré
  Pluvialis dominica (Statius Muller, 1776) -- valid -- American Golden Plover, American Golden-Plover, Chorlo dominico, Lesser Golden-Plover, Pluvier bronzé, pluvier doré d'Amérique
  Pluvialis squatarola (Linnaeus, 1758) -- valid -- Black-bellied Plover, Chorlo gris, Grey Plover, Pluvier argenté
  Podiceps Latham, 1787 -- valid -- Typical Grebes
  Podiceps auritus (Linnaeus, 1758) -- valid -- Grèbe esclavon, Horned Grebe, Zambullidor cornudo
  Podiceps grisegena (Boddaert, 1783) -- valid -- Grèbe jougris, Red-necked Grebe
  Podiceps nigricollis C. L. Brehm, 1831 -- valid -- Black-necked Grebe, Eared Grebe, Grèbe à cou noir, Zambullidor orejudo
  Podicipedidae Bonaparte, 1831 -- valid -- Grebes
  Podicipediformes -- valid -- Grebes, grèbes
  Podomys Osgood, 1909 -- valid -- Florida mice
  Podomys floridanus (Chapman, 1889) -- valid -- Florida Deermouse, Florida mouse
  Poecile cinctus (Boddaert, 1783) -- valid -- Gray-headed Chickadee, Siberian Tit
  Poliolimnas Sharpe, 1893 -- invalid -- White-browed Rails
  Poliolimnas cinereus (Vieillot, 1819) -- invalid -- White-browed Rail
  Polioptila P. L. Sclater, 1855 -- valid -- Gnatcatchers
  Polioptila caerulea (Linnaeus, 1766) -- valid -- Blue-gray Gnatcatcher, Blue-grey Gnatcatcher, gobemoucherons gris-bleu, Perlita azulgris
  Polioptila melanura Lawrence, 1857 -- valid -- Black-tailed Gnatcatcher, Perlita del desierto
  Polioptila nigriceps S. F. Baird, 1864 -- valid -- Black-capped Gnatcatcher, Perlita sinaloense
  Polyborus Vieillot, 1816 -- invalid -- Caracaras
  Polyborus plancus (J. F. Miller, 1777) -- invalid -- Crested Caracara
  Polysticta Eyton, 1836 -- valid -- Steller's Eiders
  Polysticta stelleri (Pallas, 1769) -- valid -- eider de Steller, Steller's Eider
  Pooecetes S. F. Baird, 1858 -- valid -- Vesper Sparrows
  Pooecetes gramineus (J. F. Gmelin, 1789) -- valid -- bruant vespéral, Gorrión cola blanca, Vesper Sparrow
  Porphyrio Brisson, 1760 -- valid -- Swamphens
  Porphyrio porphyrio (Linnaeus, 1758) -- valid -- Purple Swamphen
  Porphyrula Blyth, 1852 -- invalid -- Gallinules
  Porphyrula martinica (Linnaeus, 1766) -- invalid -- Gallineta morada, Purple Gallinule, talève violacée
  Porzana Vieillot, 1816 -- valid -- Soras
  Porzana carolina (Linnaeus, 1758) -- valid -- marouette de Caroline, Polluela sora, Sora
  Porzana flaviventer (Boddaert, 1783) -- valid -- Polluela pecho amarillo, Yellow-breasted Crake
  Porzana monasa (Kittlitz, 1858) -- valid -- Kosrae Rail
  Porzana palmeri (Frohawk, 1892) -- valid -- Laysan Rail
  Porzana porzana (Linnaeus, 1766) -- valid -- Spotted Crake
  Porzana sandwichensis (Gmelin, 1789) -- valid -- Hawaiian Rail
  Porzana tabuensis (Gmelin, 1789) -- valid -- Sooty Rail, Spotless Crake
  Procellariidae Leach, 1820 -- valid -- fulmars, Fulmars, Petrels, pétrels, Shearwaters
  Procellariiformes -- valid -- albatros, pétrels, Tube-nosed Swimmers, tubinares
  Procelsterna Lafresnaye, 1842 -- valid -- Blue-gray Noddys
  Procyon Storr, 1780 -- valid -- raccoons
  Procyon lotor (Linnaeus, 1758) -- valid -- common raccoon, Mapache común, northern raccoon, Raccoon, raton laveur
  Procyonidae Gray, 1825 -- valid -- procyonids
  Progne F. Boie, 1826 -- valid
  Progne chalybea (Gmelin, 1789) -- valid -- Golondrina acerada, Gray-breasted Martin, Grey-breasted Martin
  Progne cryptoleuca S. F. Baird, 1865 -- valid -- Cuban Martin
  Progne dominicensis (Gmelin, 1789) -- valid -- Caribbean Martin
  Progne subis (Linnaeus, 1758) -- valid -- Golondrina azulnegra, hirondelle noire, Purple Martin
  Proteidae Gray, 1825 -- valid -- Mudpuppies, Olms, Waterdogs
  Protonotaria S. F. Baird, 1858 -- valid -- Prothonotary Warblers
  Protonotaria citrea (Boddaert, 1783) -- valid -- Chipe dorado, Paruline orangée, Prothonotary Warbler
  Prunella Vieillot, 1816 -- valid -- Accentors
  Prunella montanella (Pallas, 1776) -- valid -- Siberian Accentor
  Prunellidae Richmond, 1908 -- valid -- Accentors
  Psaltriparus Bonaparte, 1850 -- valid -- Bushtits
  Psaltriparus minimus (J. K. Townsend, 1837) -- valid -- American Bushtit, Bushtit, Sastrecillo
  Pseudacris Fitzinger, 1843 -- valid -- Chorus Frogs, Spring Peepers
  Pseudacris regilla (Baird and Girard, 1852) -- valid -- Northern Pacific Treefrog, Pacific Chorus Frog, Pacific Treefrog, Rana-de coro del pacífico
  Pseudemys Gray, 1856 -- valid -- cooter turtles, Cooters, red-bellied turtles
  Pseudemys alabamensis Baur, 1893 -- valid -- Alabama Red-bellied Cooter, Alabama red-bellied turtle
  Pseudemys concinna (Le Conte, 1830) -- valid -- River Cooter
  Pseudemys floridana (Le Conte, 1830) -- invalid -- Common Cooter
  Pseudemys nelsoni Carr, 1938 -- valid -- Florida Red-bellied Cooter
  Pseudemys rubriventris (Le Conte, 1830) -- valid -- American red-bellied turtle, Northern Red-bellied Cooter, red-bellied turtle
  Pseudobranchus striatus (LeConte, 1824) -- valid -- Dwarf Siren, Mud Siren, Northern Dwarf Siren
  Pseudonestor Rothschild, 1893 -- valid -- Pseudonestors
  Pseudonestor xanthophrys Rothschild, 1893 -- valid -- Maui Honeycreeper, Maui Parrotbill
  Pseudorca Reinhardt, 1862 -- valid -- false killer whales
  Pseudorca crassidens (Owen, 1846) -- valid -- False Killer Whale, Orca-falsa
  Pseudotriton Tschudi, 1838 -- valid -- Mud Salamanders, Red Salamanders, Red Salamanders & Mud Salamanders
  Pseudotriton ruber (Sonnini de Manoncourt and Latreille, 1801) -- valid -- Red Salamander
  Psittacidae -- valid -- aras, cacatoès, Cockatoos, Lories, Macaws, Parrots, perroquets
  Psittaciformes -- valid -- Parrots, perroquets
  Psittacula Cuvier, 1800 -- valid -- Rose-ringed Parakeets
  Psittacula krameri (Scopoli, 1769) -- valid -- Rose-ringed Parakeet
  Psittirostra Temminck, 1820 -- valid -- 'O'us
  Pternohyla fodiens Boulenger, 1882 -- invalid -- Lowland Burrowing Treefrog, Rana-de árbol de tierras bajas
  Pterocles Temminck, 1815 -- valid -- Sandgrouse
  Pterocles exustus Temminck, 1825 -- valid -- Chestnut-bellied Sandgrouse, Ganga à ventre brun
  Pteroclididae -- valid -- Sandgrouse
  Pteronotus Gray, 1838 -- valid -- moustached bats, naked-backed bats
  Pteronotus parnellii (Gray, 1843) -- valid -- Common Mustached Bat, Murciélago-bigotudo de Parnell, Parnell's moustached bat, Parnell's mustached bat
  Pteronotus quadridens (Gundlach, 1840) -- valid -- sooty moustached bat, Sooty Mustached Bat, sooty mustached bat
  Pteropodidae Gray, 1821 -- valid -- flying foxes, Old World fruit bats
  Pteropus Brisson, 1762 -- valid -- flying foxes
  Pteropus admiralitatum Thomas, 1894 -- valid -- Admirality flying fox, Admiralty Flying Fox, admiralty flying fox
  Pteropus insularis Hombron and Jacquinot, 1842 -- valid -- ruck flying fox, Ruck Flying Fox, Truk flying fox
  Pteropus mariannus Desmarest, 1822 -- valid -- Mariana flying fox, Mariana fruit bat, Marianas Flying Fox, Marianas flying fox
  Pteropus molossinus Temminck, 1853 -- valid -- Caroline flying fox, Caroline Flying Fox, Ponape flying fox
  Pteropus phaeocephalus Thomas, 1882 -- invalid -- mortlock flying fox, Mortlock fruit bat
  Pteropus pilosus K. Andersen, 1908 -- valid -- large Palau flying fox, Large Pelew Flying Fox, Palau flying fox
  Pteropus samoensis Peale, 1848 -- valid -- Samoa flying fox, Samoan Flying Fox, Samoan flying fox
  Pteropus tokudae Tate, 1934 -- valid -- Guam flying fox, Guam Flying Fox, little Mariana fruit bat, Tokuda's flying fox
  Ptilinopus Swainson, 1825 -- valid -- Fruit-Doves
  Ptilinopus pelewensis Hartlaub & Finsch, 1868 -- valid -- Palau Fruit Dove, Palau Fruit-Dove
  Ptilinopus perousii Peale, 1848 -- valid -- Many-colored Fruit Dove, Many-colored Fruit-Dove
  Ptilinopus porphyraceus (Temminck, 1821) -- valid -- Crimson-crowned Fruit Dove, Purple-capped Fruit-Dove
  Ptilinopus roseicapilla (Lesson, 1831) -- valid -- Mariana Fruit Dove, Marianas Fruit-Dove
  Ptilogonatidae Baird, 1858 -- valid -- Silky-Flycatchers
  Ptychoramphus Brandt, 1837 -- valid -- Cassin's Auklets
  Ptychoramphus aleuticus (Pallas, 1811) -- valid -- Alcuela oscura, Cassin's Auklet, Starique de Cassin
  Pycnonotidae G. R. Gray, 1840 -- valid -- Bulbuls
  Pycnonotus F. Boie, 1826 -- valid -- Bulbuls
  Pycnonotus cafer (Linnaeus, 1766) -- valid -- Red-vented Bulbul
  Pycnonotus jocosus (Linnaeus, 1758) -- valid -- Red-whiskered Bulbul
  Pyrocephalus Gould, 1839 -- valid -- Vermilion Flycatchers
  Pyrocephalus rubinus (Boddaert, 1783) -- valid -- Mosquero cardenal, Vermilion Flycatcher
  Pyrrhula Brisson, 1760 -- valid -- Eurasian Bullfinches
  Pyrrhula pyrrhula (Linnaeus, 1758) -- valid -- Eurasian Bullfinch
  Pyrroglaux Yamashina, 1938 -- valid -- Palau Owls
  Pyrroglaux podargina (Hartlaub & Finsch, 1872) -- valid -- Palau Owl
  Quiscalus Vieillot, 1816 -- valid -- Grackles
  Quiscalus major Vieillot, 1819 -- valid -- Boat-tailed Grackle
  Quiscalus mexicanus (Gmelin, 1788) -- valid -- Great-tailed Grackle, Zanate mexicano
  Quiscalus niger (Boddaert, 1783) -- valid -- Greater Antillean Grackle
  Quiscalus quiscula (Linnaeus, 1758) -- valid -- Common Grackle, quiscale bronzé
  Rallidae -- valid -- Coots, foulques, gallinules, Rails, râles, Waterhens
  Rallina G. R. Gray, 1846 -- valid -- Red-legged Crakes
  Rallina eurizonoides (Lafresnaye, 1845) -- valid -- Slaty-legged Crake
  Rallina fasciata (Raffles, 1822) -- valid -- Red-legged Crake
  Rallus Linnaeus, 1758 -- valid -- Greater Rails
  Rallus elegans Audubon, 1834 -- valid -- King Rail, râle élégant, Rascón real
  Rallus limicola Vieillot, 1819 -- valid -- râle de Virginie, Rascón limícola, Virginia Rail
  Rallus longirostris Boddaert, 1783 -- valid -- Clapper Rail, Rascón picudo
  Rallus owstoni (Rothschild, 1895) -- invalid -- Guam Rail
  Rallus philippensis Linnaeus, 1766 -- invalid -- Banded Rail
  Rallus wakensis (Rothschild, 1903) -- invalid -- Wake Rail
  Ramphotyphlops Fitzinger, 1843 -- valid -- Long Tailed Blindsnakes, Long-tailed Blind Snakes
  Rana aurora Baird and Girard, 1852 -- valid -- Northern Red-legged Frog, Rana pata roja, Red-legged Frog
  Rana berlandieri Baird, 1859 -- invalid -- Rana del Río Grande, Rio Grande Frog, Rio Grande Leopard Frog
  Rana cascadae Slater, 1939 -- valid -- Cascades Frog
  Rana chiricahuensis Platz and Mecham, 1979 -- invalid -- Chiricahua Leopard Frog, Rana de chiricahua
  Rana clamitans Latreille in Sonnini de Manoncourt and Latreille, 1801 -- invalid -- Green Frog, grenouille verte
  Rana fisheri Stejneger, 1893 -- invalid -- Vegas Valley Leopard Frog
  Rana okaloosae Moler, 1985 -- invalid -- Florida Bog Frog
  Rana onca Cope in Yarrow, 1875 -- invalid -- Relict Leopard Frog
  Rana rugosa Temminck and Schlegel, 1838 -- invalid -- Wrinkled Frog
  Rana sphenocephala Cope, 1886 -- invalid -- Southern Leopard Frog
  Rana temporaria Linnaeus, 1758 -- valid -- European frog
  Rana utricularia sphenocephala Cope, 1886 -- invalid -- Florida Leopard Frog
  Rana yavapaiensis Platz and Frost, 1984 -- invalid -- Lowland Leopard Frog, Rana de Yavapai, Yavapai Frog, Yavapai Leopard Frog
  Rangifer C. H. Smith, 1827 -- valid -- caribou, reindeer
  Rangifer tarandus (Linnaeus, 1758) -- valid -- caribou, caribou, Reindeer, reindeer
  Ranidae Rafinesque, 1814 -- valid -- Ranid Frogs, Ranids, Riparian Frogs, True Frogs
  Rattus Fischer, 1803 -- valid -- Old World Rats
  Rattus exulans (Peale, 1848) -- valid -- Little Rat, Pacific Rat, Polynesian rat
  Rattus norvegicus (Berkenhout, 1769) -- valid -- Brown Rat, Norway Rat, rat surmulot
  Rattus rattus (Linnaeus, 1758) -- valid -- Black Rat, House Rat, rat noir, Roof Rat
  Recurvirostra Linnaeus, 1758 -- valid -- Avocets
  Recurvirostra americana Gmelin, 1789 -- valid -- American Avocet, Avoceta americana, Avocette d'Amérique
  Regina Baird and Girard, 1853 -- valid -- Crayfish Snakes
  Regina alleni (Garman, 1874) -- valid -- Striped Crayfish Snake
  Regina grahamii Baird and Girard, 1853 -- valid -- Graham's Crayfish Snake
  Regina rigida (Say, 1825) -- valid -- Glossy Crayfish Snake, Glossy Crayfish Snakes
  Regina septemvittata (Say, 1825) -- valid -- Queen Snake, Queensnake
  Regulus Cuvier, 1800 -- valid -- Kinglets
  Regulus calendula (Linnaeus, 1766) -- valid -- Reyezuelo de rojo, roitelet à couronne rubis, Ruby-crowned Kinglet
  Regulus satrapa Lichtenstein, 1823 -- valid -- Golden-crowned Kinglet, Reyezuelo de oro, roitelet à couronne dorée
  Reithrodontomys Giglioli, 1874 -- valid -- American Harvest Mice, Harvest Mice
  Reithrodontomys fulvescens J. A. Allen, 1894 -- valid -- Fulvous Harvest Mouse, Ratón-cosechero leonado
  Reithrodontomys humulis (Audubon and Bachman, 1841) -- valid -- Eastern Harvest Mouse
  Reithrodontomys megalotis (Baird, 1857) -- valid -- Ratón-cosechero común, Western Harvest Mouse
  Reithrodontomys montanus (Baird, 1855) -- valid -- Plains Harvest Mouse, Ratón-cosechero de pradera
  Reithrodontomys raviventris Dixon, 1908 -- valid -- Salt-marsh Harvest Mouse
  Remizidae Olphe-Galliard, 1891 -- valid -- Penduline Tits, Verdins
  Reptilia Laurenti, 1768 -- valid -- répteis, reptiles, Reptiles
  Rhadinaea Cope, 1863 -- valid -- Woodland Snakes, Woodlands Snakes
  Rhadinaea flavilata (Cope, 1871) -- valid -- Pine Woods Snake
  Rhineura floridana (Baird, 1859) -- valid -- Florida Worm Lizard
  Rhinocheilus Baird and Girard, 1853 -- valid -- Long-nosed Snakes
  Rhinocheilus lecontei Baird and Girard, 1853 -- valid -- Culebra narigona, Long-nosed Snake
  Rhinophrynus Duméril and Bibron, 1841 -- valid -- Burrowing Toads
  Rhipidura Vigors & Horsfield, 1827 -- valid -- Fantails
  Rhipidura lepida Hartlaub & Finsch, 1868 -- valid -- Palau Fantail, Palau fantail flycatcher
  Rhipidura rufifrons (Latham, 1802) -- valid -- Rufous Fantail, Rufous-fronted Fantail
  Rhodacanthis Rothschild, 1892 -- valid -- Koa-Finches
  Rhodacanthis flaviceps Rothschild, 1892 -- valid -- Lesser Koa Finch, Lesser Koa-Finch
  Rhodacanthis palmeri Rothschild, 1892 -- valid -- Greater Koa Finch, Greater Koa-Finch
  Rhodothraupis Ridgway, 1898 -- valid -- Crimson-collared Grosbeaks
  Rhodothraupis celaeno (Deppe, 1830) -- valid -- Crimson-collared Grosbeak, Picogordo cuello rojo
  Rhyacotriton Dunn, 1920 -- valid -- Olympic Salamanders, Olympic Torrent Salamanders, Torrent Salamanders
  Rhyacotriton olympicus (Gaige, 1917) -- valid -- Olympic Salamander, Olympic Torrent Salamander
  Rhynchopsitta Bonaparte, 1854 -- valid -- Thick-billed Parrots
  Rhynchopsitta pachyrhyncha (Swainson, 1827) -- valid -- Cotorra-serrana occidental, Thick-billed Parrot
  Ridgwayia Stejneger, 1883 -- valid -- Aztec Thrushes
  Ridgwayia pinicola (P. L. Sclater, 1859) -- valid -- Aztec Thrush, Mirlo pinto
  Riparia T. Forster, 1817 -- valid -- Bank Swallows
  Riparia riparia (Linnaeus, 1758) -- valid -- Bank Swallow, Golondrina ribereña, hirondelle de rivage, Sand Martin
  Rissa brevirostris (Bruch, 1853) -- valid -- Mouette des brumes, Red-legged Kittiwake
  Rissa tridactyla (Linnaeus, 1758) -- valid -- Black-legged Kittiwake, Gaviota pata negra, Mouette tridactyle
  Rostrhamus Lesson, 1830 -- valid -- Snail Kites
  Rostrhamus sociabilis (Vieillot, 1817) -- valid -- Gavilán caracolero, Milan des marais, Snail Kite
  Rukia Momiyama, 1922 -- valid -- Greater White-eyes
  Rukia longirostra (Taka-Tsukasa & Yamashina, 1931) -- valid -- Long-billed White-eye, Pohnpei Greater White-eye, Ponape Greater White-eye
  Rukia oleaginea (Hartlaub & Finsch, 1872) -- invalid -- Yap Greater White-eye
  Rukia palauensis (Reichenow, 1915) -- invalid -- Palau Greater White-eye
  Rukia ruki (Hartert, 1897) -- valid -- Teardrop White-eye, Truk Greater White-eye
  Rynchops Linnaeus, 1758 -- valid -- Skimmers
  Rynchops nigra Linnaeus, 1758 -- invalid
  Saimiri Voigt in G. Cuvier, 1831 -- valid -- squirrel monkeys
  Saimiri sciureus (Linnaeus, 1758) -- valid -- Common Squirrel Monkey, Guianan Squirrel Monkey, South American squirrel monkey
  Salpinctes Cabanis, 1847 -- valid -- Rock Wrens
  Salpinctes obsoletus (Say, 1822) -- valid -- Chivirín saltarroca, Rock Wren
  Salvadora Baird and Girard, 1853 -- valid -- Patch-nosed Snakes
  Salvadora deserticola Schmidt, 1940 -- valid -- Big Bend Patch-nosed Snake, Culebra-parchada de Big Bend
  Salvadora grahamiae Baird and Girard, 1853 -- valid -- Culebra-parchada de montaña, Mountain Patch-nosed Snake
  Salvadora hexalepis (Cope, 1866) -- valid -- Culebra-parchada de cabestrillo, Western Patch-nosed Snake
  Sauromalus Duméril, 1856 -- valid -- Chuckwallas
  Sauromalus obesus (Baird, 1859) -- invalid -- Chuckwalla, Chuckwalla común
  Saurothera Vieillot, 1816 -- valid -- Lizard-Cuckoos
  Saurothera vieilloti Bonaparte, 1850 -- valid -- Puerto Rican Lizard-Cuckoo
  Saxicola torquatus (Linnaeus, 1766) -- valid
  Sayornis Bonaparte, 1854 -- valid -- Phoebes
  Sayornis nigricans (Swainson, 1827) -- valid -- Black Phoebe, Papamoscas negro
  Sayornis phoebe (Latham, 1790) -- valid -- Eastern Phoebe, moucherolle phébi, Papamoscas fibí
  Sayornis saya (Bonaparte, 1825) -- valid -- moucherolle à ventre roux, Papamoscas llanero, Say's Phoebe
  Scalopus Desmarest, 1804 -- invalid
  Scalopus aquaticus (Linnaeus, 1758) -- valid -- Eastern Mole, Topo occidental, topos
  Scapanus Pomel, 1848 -- valid -- western moles
  Scapanus latimanus (Bachman, 1842) -- valid -- Broad-footed Mole, Topo pata ancha, topociego
  Scapanus orarius True, 1896 -- valid -- Coast Mole, Pacific mole, red-footed mole
  Scapanus townsendii (Bachman, 1839) -- valid -- snow mole, Townsend's Mole
  Sceloporus clarkii Baird and Girard, 1852 -- valid -- Clark's Spiny Lizard
  Sceloporus graciosus Baird and Girard, 1852 -- valid -- Lagartija-escamosa de Artemisa, Sagebrush Lizard
  Sceloporus grammicus Wiegmann, 1828 -- valid -- Lagartija-escamosa de mezquite, Mesquite Lizard
  Sceloporus jarrovii Cope in Yarrow, 1875 -- valid -- Mountain Spiny Lizard, Yarrow's Spiny Lizard
  Sceloporus magister Hallowell, 1854 -- valid -- Desert Spiny Lizard, Lagartija-escamosa de desierto
  Sceloporus merriami Stejneger, 1904 -- valid -- Canyon Lizard, Lagartija-escamosa de cañón
  Sceloporus occidentalis Baird and Girard, 1852 -- valid -- Lagartija-escamosa del occidente, Western Fence Lizard
  Sceloporus olivaceus Smith, 1934 -- valid -- Lagartija-escamosa de Texas, Texas Spiny Lizard
  Sceloporus orcutti Stejneger, 1893 -- valid -- Granite Spiny Lizard, Lagartija-escamosa de granito
  Sceloporus poinsettii Baird and Girard, 1852 -- valid -- Crevice Spiny Lizard
  Sceloporus scalaris Wiegmann, 1828 -- valid -- Bunch Grass Lizard, Lagartija-escamosa escalonada
  Sceloporus serrifer Cope, 1866 -- valid -- Blue Spiny Lizard, Lagartija-escamosa azul
  Sceloporus undulatus (Bosc and Daudin in Sonnini and Latreille, 1801) -- valid -- Eastern Fence Lizard, Fence Lizard, Lagartija-escamosa de pradera, Plateau Lizard, Prairie Lizard
  Sceloporus variabilis Wiegmann, 1834 -- valid -- Lagartija-escamosa panza rosada, Rose-bellied Lizard
  Sceloporus virgatus Smith, 1938 -- valid -- Lagartija-escamosa rayada, Striped Plateau Lizard
  Sceloporus woodi Stejneger, 1918 -- valid -- Florida Scrub Lizard
  Scincella Mittleman, 1950 -- valid -- Ground Skinks
  Scincella lateralis (Say in James, 1823) -- valid -- Encinela norteña, Ground Skink, Little Brown Skink
  Scincidae -- valid -- Skinks
  Sciuridae Fischer de Waldheim, 1817 -- valid -- chipmunks, marmots, squirrels
  Sciurus Linnaeus, 1758 -- valid -- tree squirrels
  Sciurus aberti Woodhouse, 1853 -- valid -- Abert's Squirrel, Ardilla de Albert
  Sciurus arizonensis Coues, 1867 -- valid -- Ardilla de Arizona, Arizona Gray Squirrel
  Sciurus carolinensis Gmelin, 1788 -- valid -- Eastern Gray Squirrel, écureuil gris, gray squirrel
  Sciurus griseus Ord, 1818 -- valid -- Ardilla gris, Western Gray Squirrel
  Sciurus nayaritensis J. A. Allen, 1890 -- valid -- Ardilla de Nayarit, Mexican Fox Squirrel, Nayarit squirrel
  Sciurus niger Linnaeus, 1758 -- valid -- Ardilla zorra, Eastern Fox Squirrel, fox squirrel
  Sciurus niger niger Linnaeus, 1758 -- valid -- fox squirrel
  Scolopacidae Rafinesque, 1815 -- valid -- bécasseaux, Sandpipers, Snipes
  Scolopax Linnaeus, 1758 -- valid -- Woodcocks
  Scolopax minor Gmelin, 1789 -- valid -- American Woodcock, Bécasse d'Amérique, Chocha americana
  Scolopax rusticola Linnaeus, 1758 -- valid -- Bécasse des bois, Eurasian Woodcock
  Seiurus Swainson, 1827 -- valid -- Ovenbirds
  Seiurus aurocapillus (Linnaeus, 1766) -- invalid -- Chipe suelero, Ovenbird, paruline couronnée
  Seiurus motacilla (Vieillot, 1809) -- invalid -- Chipe arroyero, Louisiana Waterthrush, paruline hochequeue
  Seiurus noveboracensis (J. F. Gmelin, 1789) -- invalid -- Chipe charquero, Northern Waterthrush, paruline des ruisseaux
  Selasphorus Swainson, 1832 -- valid -- Rufous Hummingbirds
  Selasphorus platycercus (Swainson, 1827) -- valid -- Broad-tailed Hummingbird, Zumbador cola ancha
  Selasphorus rufus (Gmelin, 1788) -- valid -- Rufous Hummingbird, Zumbador rufo
  Selasphorus sasin (Lesson, 1829) -- valid -- Allen's Hummingbird, Zumbador de Allen
  Seminatrix Cope, 1895 -- valid -- Swamp Snakes, Swampsnakes
  Seminatrix pygaea (Cope, 1871) -- valid -- Black Swamp Snake, Black Swampsnake
  Serinus Koch, 1816 -- valid -- Canaries
  Serinus canaria (Linnaeus, 1758) -- valid -- Atlantic Canary, Common Canary
  Serinus mozambicus (P. L. Statius Müller, 1776) -- invalid -- Yellow-fronted Canary
  Serpentes Linnaeus, 1758 -- valid -- cobra, serpente, serpents, Snakes
  Setophaga Swainson, 1827 -- valid -- Redstarts
  Setophaga ruticilla (Linnaeus, 1758) -- valid -- American Redstart, Chipe flameante, Paruline flamboyante
  Sialia Swainson, 1827 -- valid -- Bluebirds
  Sialia currucoides (Bechstein, 1798) -- valid -- Azulejo pálido, merlebleu azuré, Mountain Bluebird
  Sialia mexicana Swainson, 1832 -- valid -- Azulejo garganta azul, merle-bleu de l'ouest, Western Bluebird
  Sialia sialis (Linnaeus, 1758) -- valid -- Azulejo garganta canela, Eastern Bluebird, merlebleu de l'est
  Sicalis F. Boie, 1828 -- valid -- Saffron Finches
  Sicalis flaveola (Linnaeus, 1766) -- valid -- Saffron Finch
  Sigmodon Say and Ord, 1825 -- valid -- Cotton Rats
  Sigmodon arizonae Mearns, 1890 -- valid -- Arizona Cotton Rat, Rata-algodonera de Arizona
  Sigmodon fulviventer J. A. Allen, 1889 -- valid -- Rata-algodonera vientre leonado, Tawny-bellied Cotton Rat, Zacatecan Cotton Rat
  Sigmodon hispidus Say and Ord, 1825 -- valid -- Hispid Cotton Rat, Rata-algodonera crespa
  Sigmodon ochrognathus Bailey, 1902 -- valid -- Rata-algodonera nariz amarilla, Yellow-nosed Cotton Rat
  Sirenia Illiger, 1811 -- valid -- dugongs, manatees, sea cows, sirens
  Sistrurus Garman, 1883 -- valid -- Massasaugas, Pigmy Rattlesnakes, Pygmy Rattlesnakes
  Sistrurus catenatus (Rafinesque, 1818) -- valid -- Massasauga, Víbora-cascabel pigmea-norteña
  Sistrurus miliarius (Linnaeus, 1766) -- valid -- Pigmy Rattlesnake, Pygmy Rattlesnake
  Sitta Linnaeus, 1758 -- valid -- Nuthatches
  Sitta canadensis Linnaeus, 1766 -- valid -- Red-breasted Nuthatch, Sita canadiense, sittelle à poitrine rousse
  Sitta carolinensis Latham, 1790 -- valid -- Sita pecho blanco, sittelle à poitrine blanche, White-breasted Nuthatch
  Sitta pusilla Latham, 1790 -- valid -- Brown-headed Nuthatch
  Sitta pygmaea Vigors, 1839 -- valid -- Pygmy Nuthatch, Sita enana
  Sittidae Lesson, 1828 -- valid -- Nuthatches
  Somateria Leach, 1819 -- valid -- Greater Eiders, Typical Eiders
  Somateria fischeri (Brandt, 1847) -- valid -- Spectacled Eider
  Somateria mollissima (Linnaeus, 1758) -- valid -- Common Eider, eider à duvet
  Somateria spectabilis (Linnaeus, 1758) -- valid -- eider à tête grise, King Eider
  Sonora Baird and Girard, 1853 -- valid -- North American Ground Snakes, North American Groundsnakes
  Sonora semiannulata Baird and Girard, 1853 -- valid -- Culebra-suelera semianillada, Ground Snake, Groundsnake
  Sorex Linnaeus, 1758 -- valid -- red-toothed shrews
  Sorex alaskanus Merriam, 1900 -- valid -- Glacier Bay Water Shrew
  Sorex arcticus Kerr, 1792 -- valid -- Arctic Shrew, black-backed shrew, musaraigne arctique, musaraigne nordique, saddle-back shrew
  Sorex arizonae Diersing and Hoffmeister, 1977 -- valid -- Arizona Shrew, Musaraña de Arizona
  Sorex bendirii (Merriam, 1884) -- valid -- Bendire's shrew, Bendire's water shrew, Marsh Shrew, Pacific marsh shrew, Pacific water shrew
  Sorex cinereus Kerr, 1792 -- valid -- Cinereus Shrew, common shrew, masked shrew, musaraigne cendrée
  Sorex dispar Batchelder, 1911 -- valid -- gray long-tailed shrew, Long-tailed Shrew, musaraigne longicaude, rock shrew
  Sorex fontinalis Hollister, 1911 -- invalid -- eastern shrew, Maryland shrew
  Sorex fumeus G. M. Miller, 1895 -- valid -- musaraigne fuligineuse, smokey shrew, Smoky Shrew
  Sorex gaspensis Anthony and Goodwin, 1924 -- valid -- Gaspé Shrew, musaraigne de Gaspé
  Sorex haydeni Baird, 1857 -- valid -- Hayden's shrew, Prairie Shrew
  Sorex hoyi Baird, 1857 -- valid -- American Pygmy Shrew, musaraigne pygmée, Pygmy Shrew
  Sorex hydrodromus Dobson, 1889 -- invalid -- Pribilof Islands shrew
  Sorex jacksoni Hall and Gilmore, 1932 -- valid -- St. Lawrence Island Shrew
  Sorex longirostris Bachman, 1837 -- valid -- Southeastern Shrew
  Sorex lyelli Merriam, 1902 -- valid -- Lyell shrew, Mount Lyell shrew, Mt. Lyell Shrew
  Sorex merriami Dobson, 1890 -- valid -- Merriam's Shrew
  Sorex monticolus Merriam, 1890 -- valid -- Dusky Shrew, Montane Shrew
  Sorex nanus Merriam, 1895 -- valid -- Dwarf Shrew, Rocky Mountain dwarf shrew
  Sorex ornatus Merriam, 1895 -- valid -- Musaraña adornada, Ornate Shrew, Suisun shrew
  Sorex pacificus Coues, 1877 -- valid -- Pacific Shrew
  Sorex palustris Richardson, 1828 -- valid -- American Water Shrew, musaraigne palustre, northern water shrew, Water Shrew
  Sorex preblei Jackson, 1922 -- valid -- malheur shrew, Preble's Shrew
  Sorex tenellus Merriam, 1895 -- valid -- great basin dwarf shrew, Inyo Shrew
  Sorex trowbridgii Baird, 1857 -- valid -- Trowbridge's Shrew
  Sorex tundrensis Merriam, 1900 -- valid -- Tundra Shrew
  Sorex vagrans Baird, 1857 -- valid -- Vagrant Shrew, wandering shrew
  Soricidae G. Fischer, 1814 -- valid -- shrews
  Spermophilus F. Cuvier, 1825 -- valid -- Ground Squirrels, old world ground squirrels
  Spermophilus armatus Kennicott, 1863 -- invalid -- Uinta Ground Squirrel
  Spermophilus beecheyi (Richardson, 1829) -- invalid -- Ardillón de California, California Ground Squirrel
  Spermophilus beldingi Merriam, 1888 -- invalid -- Belding's Ground Squirrel
  Spermophilus brunneus (A. H. Howell, 1928) -- invalid -- Idaho Ground Squirrel, northern Idaho ground squirrel
  Spermophilus columbianus (Ord, 1815) -- invalid -- Columbian Ground Squirrel
  Spermophilus elegans Kennicott, 1863 -- invalid -- Wyoming Ground Squirrel
  Spermophilus franklinii (Sabine, 1822) -- invalid -- Franklin's Ground Squirrel
  Spermophilus lateralis (Say, 1823) -- invalid -- Golden-mantled Ground Squirrel
  Spermophilus mexicanus (Erxleben, 1777) -- invalid -- Ardillón mexicano, Mexican Ground Squirrel
  Spermophilus mohavensis Merriam, 1889 -- invalid -- Mohave Ground Squirrel
  Spermophilus parryii (Richardson, 1825) -- invalid -- Arctic Ground Squirrel
  Spermophilus richardsonii (Sabine, 1822) -- invalid -- Richardson's Ground Squirrel
  Spermophilus saturatus (Rhoads, 1895) -- invalid -- Cascade Golden-mantled Ground Squirrel
  Spermophilus spilosoma Bennett, 1833 -- invalid -- Ardillón punteado, Spotted Ground Squirrel
  Spermophilus tereticaudus Baird, 1858 -- invalid -- Ardillón cola redonda, Round-tailed Ground Squirrel
  Spermophilus townsendii Bachman, 1839 -- invalid -- Townsend's Ground Squirrel
  Spermophilus tridecemlineatus (Mitchill, 1821) -- invalid -- Thirteen-lined Ground Squirrel
  Spermophilus variegatus (Erxleben, 1777) -- invalid -- Ardillón de roca, Rock Squirrel
  Spermophilus washingtoni (A. H. Howell, 1938) -- invalid -- Washington Ground Squirrel
  Sphaerodactylus Wagler, 1830 -- valid -- Dwarf Geckos
  Sphaerodactylus argus Gosse, 1850 -- valid -- Geco-enano ocelado, Ocellated Dwarf Gecko, Ocellated Gecko, Ocellated Gekko
  Sphaerodactylus beattyi Grant, 1937 -- valid -- Cotton Ginner Gecko
  Sphaerodactylus becki Schmidt, 1919 -- valid -- Navassa Dwarf Gecko, Navassa Island Dwarf Gecko
  Sphaerodactylus elegans Macleay, 1834 -- valid -- Ashy Gecko
  Sphaerodactylus gaigeae Grant, 1932 -- valid -- Gaige's Dwarf Gecko, Pandura's Gecko
  Sphaerodactylus klauberi Grant, 1931 -- valid -- Klauber's Dwarf Gecko
  Sphaerodactylus levinsi Heatwole, 1968 -- valid -- Desecheo Dwarf Gecko
  Sphaerodactylus macrolepis Günther, 1859 -- valid -- Common Dwarf Gecko
  Sphaerodactylus micropithecus Schwartz, 1977 -- valid -- Monito Dwarf Gecko, Monito Gecko
  Sphaerodactylus monensis Meerwarth, 1901 -- valid -- Mona Dwarf Gecko
  Sphaerodactylus nicholsi Grant, 1931 -- valid -- Nichols' Dwarf Gecko
  Sphaerodactylus notatus Baird, 1859 -- valid -- Reef Gecko
  Sphaerodactylus roosevelti Grant, 1931 -- valid -- Roosevelt's Dwarf Gecko
  Sphaerodactylus townsendi Grant, 1931 -- valid -- Townsend's Dwarf Gecko
  Sphenomorphus Fitzinger, 1843 -- valid -- Common Skinks
  Sphenomorphus scutatus (Peters, 1867) -- valid -- Palauan Skink
  Sphyrapicus S. F. Baird, 1858 -- valid -- Sapsuckers
  Sphyrapicus nuchalis S. F. Baird, 1858 -- valid -- Chupasavia nuca roja, Red-naped Sapsucker
  Sphyrapicus ruber (Gmelin, 1788) -- valid -- Chupasavia cabeza roja, Red-breasted Sapsucker
  Sphyrapicus thyroideus (Cassin, 1852) -- valid -- Chupasavia oscuro, Williamson's Sapsucker
  Sphyrapicus varius (Linnaeus, 1766) -- valid -- Chupasavia maculado, pic maculé, Yellow-bellied Sapsucker
  Spilogale Gray, 1865 -- valid -- spotted skunks
  Spilogale putorius (Linnaeus, 1758) -- valid -- Eastern Spotted Skunk, spotted skunk, Zorrillo-manchado común
  Spindalis Jardine & Selby, 1837 -- valid -- Stripe-headed Tanagers
  Spindalis zena (Linnaeus, 1758) -- valid -- Stripe-headed Tanager, Tángara cabeza rayada, Western Spindalis
  Spiza Bonaparte, 1824 -- valid -- Dickcissels
  Spiza americana (J. F. Gmelin, 1789) -- valid -- Arrocero americano, Dickcissel, dickcissel d'Amérique
  Spizella Bonaparte, 1832 -- valid -- Chipping Sparrows
  Spizella arborea (A. Wilson, 1810) -- invalid -- American Tree Sparrow, bruant hudsonien
  Spizella atrogularis (Cabanis, 1851) -- valid -- Black-chinned Sparrow, Gorrión barba negra
  Spizella breweri Cassin, 1856 -- valid -- Brewer's Sparrow, Gorrión de Brewer
  Spizella pallida (Swainson, 1832) -- valid -- bruant des plaines, Clay-colored Sparrow, Gorrión pálido
  Spizella passerina (Bechstein, 1798) -- valid -- bruant familier, Chipping Sparrow, Gorrión ceja blanca
  Spizella pusilla (A. Wilson, 1810) -- valid -- bruant des champs, Field Sparrow, Gorrión pusila
  Spizella wortheni Ridgway, 1884 -- valid -- Gorrión de Worthen, Worthen's Sparrow
  Sporophila Cabanis, 1844 -- valid -- Seedeaters
  Sporophila torqueola (Bonaparte, 1850) -- valid -- Cinnamon-rumped Seedeater, Semillero de collar, White-collared Seedeater
  Squamata Oppel, 1811 -- valid -- Amphisbaenians, amphisbènes, lézards, Lizards, serpents, Snakes
  Stelgidopteryx S. F. Baird, 1858 -- valid -- Rough-winged Swallows
  Stelgidopteryx serripennis (Audubon, 1838) -- valid -- Golondrina ala aserrada, hirondelle à ailes hérissées, Northern Rough-winged Swallow
  Stellula Gould, 1861 -- valid -- Calliope Hummingbirds
  Stellula calliope (Gould, 1847) -- valid -- Calliope Hummingbird, Colibrí garganta rayada
  Stenella Gray, 1866 -- valid -- spinner dolphins, spotted dolphins, striped dolphins
  Stenella attenuata (Gray, 1846) -- valid -- Delfín moteado, Pantropical Spotted Dolphin
  Stenella clymene (Gray, 1850) -- valid -- Clymene Dolphin, Delfín de Clymen, short-snouted spinner dolphin
  Stenella coeruleoalba (Meyen, 1833) -- valid -- Delfín listado, Striped Dolphin
  Stenella dubia (G. Cuvier, 1812) -- invalid
  Stenella fontolis (G. Cuvier, 1829) -- invalid
  Stenella longirostris (Gray, 1828) -- valid -- Delfín tornillo, long-snouted spinner dolphin, Spinner Dolphin
  Steno Gray, 1846 -- valid -- rough-toothed dolphins
  Steno bredanensis (G. Cuvier in Lesson, 1828) -- valid -- Delfín dientes rugosos, Rough-toothed Dolphin
  Stenoderma E. Geoffroy, 1818 -- valid -- red fruit-eating bats
  Stenoderma rufum Desmarest, 1820 -- valid -- Desmarest's fig-eating bat, red fig-eating bat, Red Fruit Bat, red fruit bat
  Stercorarius Brisson, 1760 -- valid -- Jaegers
  Stercorarius longicaudus Vieillot, 1819 -- valid -- Labbe à longue queue, Long-tailed Jaeger, Salteador cola larga
  Stercorarius parasiticus (Linnaeus, 1758) -- valid -- Labbe parasite, Parasitic Jaeger, Salteador parásito
  Stercorarius pomarinus (Temminck, 1815) -- valid -- Labbe pomarin, Pomarine Jaeger, Pomarine Skua, Salteador pomarino
  Sterna Linnaeus, 1758 -- valid -- Typical Terns
  Sterna albifrons Pallas, 1764 -- invalid -- Little Tern
  Sterna aleutica S. F. Baird, 1869 -- invalid -- Aleutian Tern
  Sterna anaethetus Scopoli, 1786 -- invalid -- Bridled Tern, Charrán embridado
  Sterna antillarum (Lesson, 1847) -- invalid -- Charrán mínimo, Least Tern
  Sterna bergii Lichtenstein, 1823 -- invalid -- Great Crested Tern, Swift Tern
  Sterna caspia Pallas, 1770 -- invalid -- Caspian Tern, Charrán caspia, sterne caspienne
  Sterna dougallii Montagu, 1813 -- valid -- Charrán rosado, Roseate Tern, Sterne de Dougall
  Sterna elegans Gambel, 1849 -- invalid -- Charrán elegante, Elegant Tern
  Sterna forsteri Nuttall, 1834 -- valid -- Charrán de Forster, Forster's Tern, Sterne de Forster
  Sterna fuscata Linnaeus, 1766 -- invalid -- Charrán sombrío, Sooty Tern
  Sterna hirundo Linnaeus, 1758 -- valid -- Charrán común, Common Tern, Sterne pierregarin
  Sterna lunata Peale, 1848 -- invalid -- Gray-backed Tern, Spectacled Tern
  Sterna maxima Boddaert, 1783 -- invalid -- Charrán real, Royal Tern
  Sterna nilotica Gmelin, 1789 -- invalid -- Charrán pico grueso, Gull-billed Tern
  Sterna paradisaea Pontoppidan, 1763 -- valid -- Arctic Tern, Charrán ártico, Sterne arctique
  Sterna sandvicensis Latham, 1787 -- invalid -- Charrán de Sandwich, Sandwich Tern
  Sterna striata Gmelin, 1789 -- valid -- Black-naped Tern, White-fronted Tern
  Sternotherus Bell in Gray, 1825 -- valid -- Musk Turtles
  Sternotherus carinatus (Gray, 1856) -- valid -- Razor-backed Musk Turtle
  Sternotherus depressus Tinkle and Webb, 1955 -- valid -- Flattened Musk Turtle
  Sternotherus minor (Agassiz, 1857) -- valid -- Loggerhead Musk Turtle
  Sternotherus odoratus (Latreille in Sonnini and Latreille, 1801) -- valid -- Common Musk Turtle, Eastern Musk Turtle, Musk Turtle, Stinkpot
  Stilosoma Brown, 1890 -- valid -- Short-tailed Snakes
  Stilosoma extenuatum Brown, 1890 -- valid -- Short-tailed Snake
  Storeria Baird and Girard, 1853 -- valid -- Brown-bellied Snakes, North American Brownsnakes, Red-bellied Snakes
  Storeria dekayi (Holbrook, 1839) -- valid -- Brown Snake, couleuvre brune, Culebra-parda de Kay, Dekay's Brown Snake, DeKay's Brownsnake
  Storeria occipitomaculata (Storer, 1839) -- valid -- couleuvre à ventre rouge, Red-bellied Snake, Redbelly Snake
  Streptopelia Bonaparte, 1855 -- valid -- Turtle-Doves
  Streptopelia bitorquata (Temminck, 1809) -- valid -- Island Collared Dove, Javanese Turtle-Dove
  Streptopelia chinensis (Scopoli, 1786) -- valid -- Spotted Dove
  Streptopelia risoria (Linnaeus, 1758) -- valid -- Ringed Turtle-Dove
  Streptoprocne Oberholser, 1906 -- valid -- White-collared Swifts
  Streptoprocne zonaris (Shaw, 1796) -- valid -- Vencejo cuello blanco, White-collared Swift
  Strigidae -- valid -- Owls, strigidés, Typical Owls
  Strix Linnaeus, 1758 -- valid -- Earless Owls
  Strix nebulosa J. R. Forster, 1772 -- valid -- chouette lapone, Great Gray Owl, Great Grey Owl
  Strix varia Barton, 1799 -- valid -- Barred Owl, Búho listado, chouette rayée
  Sturnella Vieillot, 1816 -- valid -- Meadowlarks
  Sturnella magna (Linnaeus, 1758) -- valid -- Eastern Meadowlark, Pradero tortilla-con-chile, sturnelle des prés
  Sturnella neglecta Audubon, 1844 -- valid -- Pradero occidental, sturnelle de l'ouest, Western Meadowlark
  Sturnidae Rafinesque, 1815 -- valid -- étourneaux, Starlings
  Sturnus Linnaeus, 1758 -- valid -- Starlings
  Sturnus cineraceus Temminck, 1835 -- invalid -- White-cheeked Starling
  Sturnus philippensis (J. R. Forster, 1781) -- invalid -- Chestnut-cheeked Starling
  Sturnus vulgaris Linnaeus, 1758 -- valid -- Common Starling, Estornino pinto, étourneau sansonnet, European Starling
  Suidae Gray, 1821 -- valid -- hogs, pigs
  Sula Brisson, 1760 -- valid -- Boobies, Gannets
  Sula bassanus (Linnaeus, 1758) -- invalid -- Northern Gannet
  Sula dactylatra Lesson, 1831 -- valid -- Bobo enmascarado, Fou masqué, Masked Booby
  Sula leucogaster (Boddaert, 1783) -- valid -- Bobo café, Brown Booby, Fou brun
  Sula nebouxii Milne-Edwards, 1882 -- valid -- Blue-footed Booby, Bobo pata azul, Fou à pieds bleus
  Sula sula (Linnaeus, 1766) -- valid -- Bobo pata roja, Fou à pieds rouges, Red-footed Booby
  Sulidae Reichenbach, 1849 -- valid -- Boobies, Gannets
  Suncus Ehrenberg, 1832 -- valid -- white-toothed shrews
  Suncus murinus (Linnaeus, 1766) -- valid -- Asian House Shrew, house shrew
  Surnia Dumeril, 1805 -- valid -- Hawk-Owls
  Surnia ulula (Linnaeus, 1758) -- valid -- chouette épervière, Northern Hawk Owl, Northern Hawk-Owl
  Sus Linnaeus, 1758 -- valid -- pigs
  Sus scrofa Linnaeus, 1758 -- valid -- pig, pig (feral), Wild Boar, wild boar
  Sylviidae Leach, 1820 -- valid -- fauvettes, gobe-mouches, Sylviid Babblers
  Sylvilagus Gray, 1867 -- valid -- Cottontails
  Sylvilagus aquaticus (Bachman, 1837) -- valid -- Swamp Rabbit
  Sylvilagus audubonii (Baird, 1858) -- valid -- Desert Cottontail
  Sylvilagus bachmani (Waterhouse, 1839) -- valid -- Brush Rabbit, Conejo matorralero
  Sylvilagus floridanus (J. A. Allen, 1890) -- valid -- Conejo serrano, Eastern Cottontail, lapin à queue blanche
  Sylvilagus idahoensis (Merriam, 1891) -- invalid -- pygmy rabbit
  Sylvilagus nuttallii (Bachman, 1837) -- valid -- Mountain Cottontail, Nuttall's cottontail
  Sylvilagus palustris (Bachman, 1837) -- valid -- Marsh Rabbit
  Sylvilagus transitionalis (Bangs, 1895) -- valid -- New England Cottontail
  Synaptomys Baird, 1857 -- valid -- Bog Lemmings
  Synaptomys borealis (Richardson, 1828) -- valid -- campagnol-lemming boréale, Northern Bog Lemming
  Synaptomys cooperi Baird, 1857 -- valid -- campagnol-lemming de Cooper, Southern Bog Lemming
  Synthliboramphus Brandt, 1837 -- valid -- Ancient Murrelets
  Synthliboramphus antiquus (Gmelin, 1789) -- valid -- Ancient Murrelet, Guillemot à cou blanc, Mérgulo antiguo
  Synthliboramphus craveri (Salvadori, 1865) -- valid -- Craveri's Murrelet, Guillemot de Craveri, Mérgulo de Craveri
  Synthliboramphus hypoleucus (Xantus de Vesey, 1860) -- valid -- Guillemot de Xantus, Xantus' Murrelet, Xantus' Murrelet, Xantus's Murrelet
  Syrrhophus Cope, 1878 -- invalid -- Chirping Frogs
  Syrrhophus cystignathoides (Cope, 1877) -- invalid -- Rio Grande Chirping Frog
  Syrrhophus guttilatus (Cope, 1879) -- invalid -- Spotted Chirping Frog
  Syrrhophus marnockii Cope, 1878 -- invalid -- Cliff Chirping Frog
  Tachornis Gosse, 1847 -- valid -- Palm Swifts
  Tachornis phoenicobia Gosse, 1847 -- valid -- Antillean Palm Swift, Antillean Palm-Swift
  Tachybaptus Reichenbach, 1853 -- valid -- Least Grebes
  Tachybaptus dominicus bangsi (van Rossem & Hachisuka, 1937) -- valid -- Least Grebe
  Tachycineta Cabanis, 1850 -- valid -- Tree Swallows
  Tachycineta bicolor (Vieillot, 1808) -- valid -- Golondrina bicolor, hirondelle bicolore, Tree Swallow
  Tachycineta cyaneoviridis (H. Bryant, 1859) -- valid -- Bahama Swallow, Bahaman Swallow
  Tachycineta thalassina (Swainson, 1827) -- valid -- Golondrina verdemar, Violet-green Swallow
  Tadarida Rafinesque, 1814 -- valid -- guano bats
  Tadarida brasiliensis (I. Geoffroy, 1824) -- valid -- Brazilian free-tailed bat, Brazilian Free-tailed Bat, Mexican Free-tailed Bat, Murciélago-cola suelta brasileño
  Talpidae G. Fischer, 1814 -- valid -- desmans, moles, shrew-moles
  Tamias Illiger, 1811 -- valid -- Chipmunks
  Tamias alpinus Merriam, 1893 -- valid -- Alpine Chipmunk
  Tamias amoenus J. A. Allen, 1890 -- valid -- Yellow-pine Chipmunk
  Tamias canipes (V. Bailey, 1902) -- valid -- Gray-footed Chipmunk
  Tamias cinereicollis J. A. Allen, 1890 -- valid -- Gray-collared Chipmunk
  Tamias dorsalis Baird, 1855 -- valid -- Cliff Chipmunk
  Tamias merriami J. A. Allen, 1889 -- valid -- Merriam's Chipmunk
  Tamias minimus Bachman, 1839 -- valid -- Least Chipmunk, tamia mineur
  Tamias obscurus J. A. Allen, 1890 -- valid -- California Chipmunk, Dusky Chipmunk
  Tamias ochrogenys (Merriam, 1897) -- valid -- Redwood Chipmunk, Yellow-cheeked Chipmunk
  Tamias palmeri (Merriam, 1897) -- valid -- Palmer's Chipmunk
  Tamias panamintinus Merriam, 1893 -- valid -- Panamint Chipmunk
  Tamias quadrimaculatus Gray, 1867 -- valid -- Long-eared Chipmunk
  Tamias quadrivittatus (Say, 1823) -- valid -- Colorado Chipmunk
  Tamias ruficaudus (A. H. Howell, 1920) -- valid -- Red-tailed Chipmunk
  Tamias senex J. A. Allen, 1890 -- valid -- Allen's Chipmunk, Shadow Chipmunk
  Tamias siskiyou (A. H. Howell, 1922) -- valid -- Siskiyou Chipmunk
  Tamias sonomae (Grinnell, 1915) -- valid -- Sonoma Chipmunk
  Tamias speciosus Merriam, 1890 -- valid -- Lodgepole Chipmunk
  Tamias striatus (Linnaeus, 1758) -- valid -- Eastern Chipmunk, tamia rayé
  Tamias townsendii Bachman, 1839 -- valid -- Townsend's Chipmunk
  Tamias umbrinus J. A. Allen, 1890 -- valid -- Uinta Chipmunk
  Tamiasciurus Trouessart, 1880 -- valid -- chickarees, Red Squirrels
  Tamiasciurus douglasii (Bachman, 1839) -- valid -- Douglas's Squirrel
  Tamiasciurus hudsonicus (Erxleben, 1777) -- valid -- écureuil roux, Red Squirrel
  Tamiasciurus hudsonicus hudsonicus (Erxleben, 1777) -- valid
  Tantilla Baird and Girard, 1853 -- valid -- Black-headed Snakes, Crowned Snakes
  Tantilla atriceps (Günther, 1895) -- valid -- Culebra-encapuchada mexicana, Mexican Black-headed Snake
  Tantilla coronata Baird and Girard, 1853 -- valid -- Southeastern Crowned Snake
  Tantilla gracilis Baird and Girard, 1853 -- valid -- Culebra-ciempiés cabeza plana, Flat-headed Snake
  Tantilla hobartsmithi Taylor, 1937 -- valid -- Culebra-encapuchada del Suroeste, Southwestern Black-headed Snake
  Tantilla nigriceps Kennicott, 1860 -- valid -- Culebra-encapuchada de pradera, Plains Black-headed Snake
  Tantilla oolitica Telford, 1966 -- valid -- Rim Rock Crowned Snake
  Tantilla planiceps (Blainville, 1835) -- valid -- California Black-headed Snake, Culebra-encapuchada californiana, Western Black-headed Snake
  Tantilla relicta Telford, 1966 -- valid -- Florida Crowned Snake
  Tantilla rubra Cope, 1875 -- valid -- Culebra-encapuchada roja, Reddish Black-headed Snake
  Tantilla wilcoxi Stejneger, 1902 -- valid -- Chihuahuan Black-headed Snake, Culebra-encapuchada chihuahuense
  Tantilla yaquia Smith, 1942 -- valid -- Culebra-encapuchada yaqui, Yaqui Black-headed Snake
  Taricha Gray, 1850 -- valid -- Pacific Newts
  Taricha granulosa (Skilton, 1849) -- valid -- Rough-skinned Newt
  Taricha rivularis (Twitty, 1935) -- valid -- Red-bellied Newt
  Taricha torosa (Rathke, 1833) -- valid -- California Newt
  Tarsiger Hodgson, 1845 -- valid -- Bluetails
  Tarsiger cyanurus (Pallas, 1773) -- valid -- Red-flanked Bluetail
  Tasmacetus Oliver, 1937 -- valid -- Tasmanian beaked whales
  Tasmacetus shepherdi Oliver, 1937 -- valid -- Shepherd's Beaked Whale, Tasman beaked whale, Tasmanian beaked whale
  Taxidea Waterhouse, 1839 -- valid -- American badgers
  Taxidea taxus (Schreber, 1777) -- valid -- American Badger, badger, Tlalcoyote
  Tayassu G. Fischer [von Waldheim], 1814 -- valid -- peccaries
  Tayassu tajacu (Linnaeus, 1758) -- invalid -- collared peccary, Pecari de collar
  Tayassuidae Palmer, 1897 -- valid -- peccaries
  Teiidae -- valid -- Ameivas, Ground Lizards, New World Runners, Racerunners, Whiptails
  Telespiza S. B. Wilson, 1890 -- valid -- Laysan Finches
  Telespyza cantans S. B. Wilson, 1890 -- invalid
  Telespyza ultima Bryan, 1917 -- invalid
  Terrapene Merrem, 1820 -- valid -- American Box Turtles, Box Turtles
  Terrapene carolina (Linnaeus, 1758) -- valid -- Common Box Turtle, Eastern Box Turtle, tortue tabatière, Tortuga de Carolina
  Testudines Linnaeus, 1758 -- invalid -- terrapins, tortoises, tortues, Turtles
  Testudinidae Batsch, 1788 -- valid -- Tortoises
  Tetraoninae -- valid -- Grouse
  Thamnophis Fitzinger, 1843 -- valid -- Garter Snakes, Ribbon Snakes
  Thamnophis brachystoma (Cope, 1892) -- valid -- Short-headed Garter Snake
  Thamnophis cyrtopsis (Kennicott, 1860) -- valid -- Black-necked Garter Snake, Culebra-listonada cuello negro
  Thamnophis elegans (Baird and Girard, 1853) -- valid -- Culebra-listonada elegante, Western Terrestrial Garter Snake
  Thamnophis eques (Reuss, 1834) -- valid -- Culebra-listonada del sur-mexicano, Mexican Garter Snake
  Thamnophis marcianus (Baird and Girard, 1853) -- valid -- Checkered Garter Snake, Culebra-listonada manchada
  Thamnophis ordinoides (Baird and Girard, 1852) -- valid -- Northwestern Garter Snake
  Thamnophis proximus (Say in James, 1823) -- valid -- Culebra-listonada occidental, Western Ribbon Snake
  Thamnophis radix (Baird and Girard, 1853) -- valid -- Plains Garter Snake
  Thamnophis rufipunctatus (Cope, 1875) -- valid -- Culebra-de agua cabeza angosta, Narrow-headed Garter Snake, Narrowhead Garter Snake
  Thamnophis sauritus (Linnaeus, 1766) -- valid -- Eastern Ribbon Snake
  Thamnophis sirtalis (Linnaeus, 1758) -- valid -- Common Garter Snake, couleuvre rayée, Culebra-listonada común
  Thecadactylus Cuvier, 1820 -- valid -- Turnip-tailed Geckos
  Thecadactylus rapicauda (Houttuyn, 1782) -- valid -- Turnip-tailed Gecko
  Thomomys Wied-Neuwied, 1839 -- valid -- Smooth-toothed Pocket Gophers, Western Pocket Gophers
  Thomomys bottae (Eydoux and Gervais, 1836) -- valid -- Botta's Pocket Gopher, Tuza de Botta
  Thomomys bulbivorus (Richardson, 1829) -- valid -- Camas Pocket Gopher
  Thomomys clusius Coues, 1875 -- valid -- Wyoming Pocket Gopher
  Thomomys idahoensis Merriam, 1901 -- valid -- Idaho Pocket Gopher
  Thomomys mazama Merriam, 1897 -- valid -- Western Pocket Gopher
  Thomomys monticola J. A. Allen, 1893 -- valid -- Mountain Pocket Gopher
  Thomomys talpoides (Richardson, 1828) -- valid -- Northern Pocket Gopher
  Thomomys townsendii (Bachman, 1839) -- valid -- Townsend's Pocket Gopher
  Thomomys umbrinus (Richardson, 1829) -- valid -- Southern Pocket Gopher, Tuza mexicana
  Thraupidae -- valid -- Tanagers
  Threskiornithidae Poche, 1904 -- valid -- Ibises, Spoonbills
  Thryomanes P. L. Sclater, 1862 -- valid -- Bewick's Wrens
  Thryomanes bewickii (Audubon, 1827) -- valid -- Bewick's Wren, Chivirín cola oscura
  Thryothorus Vieillot, 1816 -- valid -- Wrens
  Thryothorus ludovicianus (Latham, 1790) -- valid -- Carolina Wren, Chivirín de Carolina, troglodyte de Caroline
  Tiaris Swainson, 1827 -- valid -- Grassquits
  Tiaris bicolor (Linnaeus, 1766) -- valid -- Black-faced Grassquit
  Tiaris olivacea (Linnaeus, 1766) -- invalid -- Semillero oliváceo, Yellow-faced Grassquit
  Todidae -- valid -- Todies
  Todus Brisson, 1760 -- valid -- Todies
  Todus mexicanus Lesson, 1838 -- valid -- Puerto Rican Tody
  Toxostoma Wagler, 1831 -- valid -- American Thrashers
  Toxostoma bendirei (Coues, 1873) -- valid -- Bendire's Thrasher, Cuitlacoche pico corto
  Toxostoma crissale Henry, 1858 -- valid -- Crissal Thrasher, Cuitlacoche crisal
  Toxostoma curvirostre (Swainson, 1827) -- valid -- Cuitlacoche pico curvo, Curve-billed Thrasher
  Toxostoma lecontei Lawrence, 1851 -- valid -- Cuitlacoche pálido, Le Conte's Thrasher
  Toxostoma longirostre (Lafresnaye, 1838) -- valid -- Cuitlacoche pico largo, Long-billed Thrasher
  Toxostoma redivivum (Gambel, 1845) -- valid -- California Thrasher, Cuitlacoche californiano
  Toxostoma rufum (Linnaeus, 1758) -- valid -- Brown Thrasher, Cuitlacoche rojizo, moqueur roux
  Trachemys Agassiz, 1857 -- valid -- slider turtles, Sliders
  Trachemys scripta (Thunberg in Schoepff, 1792) -- valid -- Common Slider, Pond Slider, slider, tortue à oreilles rouges, Tortuga gravada
  Trachemys stejnergeri (Schmidt, 1928) -- invalid
  Trichechidae Gill, 1872 -- valid -- manatees
  Trichechus Linnaeus, 1758 -- valid -- manatees
  Trichechus manatus Linnaeus, 1758 -- valid -- Caribbean manatee, manatee, Manatí del Caribe, West Indian Manatee
  Trichoglossus Stephens, 1826 -- valid -- Island Lories
  Trichoglossus rubiginosus (Bonaparte, 1850) -- valid -- Pohnpei Lorikeet, Ponape Lory
  Trimorphodon Cope, 1861 -- valid -- Lyre Snakes
  Trimorphodon biscutatus (Duméril, Bibron and Duméril, 1854) -- valid -- Culebra-lira cabeza negra, Western Lyre Snake
  Tringa Linnaeus, 1758 -- valid -- Redshanks
  Tringa erythropus (Pallas, 1764) -- valid -- Chevalier arlequin, Spotted Redshank
  Tringa flavipes (Gmelin, 1789) -- valid -- Lesser Yellowlegs, Patamarilla menor, Petit Chevalier
  Tringa glareola Linnaeus, 1758 -- valid -- Chevalier sylvain, Wood Sandpiper
  Tringa melanoleuca (Gmelin, 1789) -- valid -- Grand Chevalier, Greater Yellowlegs, Patamarilla mayor
  Tringa nebularia (Gunnerus, 1767) -- valid -- Chevalier aboyeur, Common Greenshank
  Tringa ochropus Linnaeus, 1758 -- valid -- Chevalier cul-blanc, Green Sandpiper
  Tringa solitaria A. Wilson, 1813 -- valid -- Chevalier solitaire, Playero solitario, Solitary Sandpiper
  Tringa stagnatilis (Bechstein, 1803) -- valid -- Chevalier stagnatile, Marsh Sandpiper
  Trionychidae Gray, 1825 -- valid -- Softshell Turtles
  Trionyx sinensis Wiegmann, 1835 -- invalid
  Trionyx steindachneri Siebenrock, 1906 -- invalid -- Wattle-necked Softshell Turtle
  Trochilidae -- valid -- Hummingbirds, oiseaux-mouches
  Troglodytes Vieillot, 1809 -- valid -- Wrens
  Troglodytes aedon Vieillot, 1809 -- valid -- Chivirín saltapared, House Wren, troglodyte familier
  Troglodytes troglodytes (Linnaeus, 1758) -- valid -- Chivirín chochín, troglodyte mignon, Winter Wren
  Troglodytidae Swainson, 1832 -- valid -- Wrens
  Trogon Brisson, 1760 -- valid -- Trogons
  Trogon elegans Gould, 1834 -- valid -- Elegant Trogon, Trogón elegante
  Trogonidae -- valid -- Trogons
  Trogoniformes -- valid -- Trogons
  Tropidoclonion Cope, 1860 -- valid -- Lined Snake, Lined Snakes
  Tropidoclonion lineatum (Hallowell, 1856) -- valid -- Lined Snake
  Tropidophis Bibron in Sagra, 1843 -- valid -- Dwarf Boas
  Tropidophis melanurus (Schlegel, 1837) -- valid -- Dusky Dwarf Boa
  Tryngites Cabanis, 1857 -- valid -- Buff-breasted Sandpipers
  Tryngites subruficollis (Vieillot, 1819) -- valid -- Bécasseau roussâtre, Buff-breasted Sandpiper, Playero leonado
  Turdus Linnaeus, 1758 -- valid -- Robins
  Turdus grayi Bonaparte, 1838 -- valid -- Clay-colored Robin, Clay-colored Thrush, Mirlo pardo
  Turdus iliacus Linnaeus, 1758 -- valid
  Turdus merula Linnaeus, 1758 -- valid -- Common Blackbird, Eurasian Blackbird, merle noir
  Turdus migratorius Linnaeus, 1766 -- valid -- American Robin, merle d'Amérique, Mirlo primavera
  Turdus naumanni Temminck, 1820 -- valid -- Dusky Thrush, Naumann's Thrush
  Turdus obscurus Gmelin, 1789 -- valid -- Eyebrowed Thrush
  Turdus pilaris Linnaeus, 1758 -- valid -- Fieldfare, grive litorne
  Turdus plumbeus Linnaeus, 1758 -- valid -- Red-legged Thrush
  Turdus rufopalliatus Lafresnaye, 1840 -- valid -- Mirlo dorso rufo, Rufous-backed Robin
  Tursiops Gervais, 1855 -- valid -- bottlenose dolphins
  Tursiops truncatus (Montagu, 1821) -- valid -- Bottlenose Dolphin, Bottlenosed Dolphin, Delfín tonina
  Tympanuchus Gloger, 1841 -- valid -- Prairie-Chickens
  Tympanuchus cupido (Linnaeus, 1758) -- valid -- Greater Prairie Chicken, Greater Prairie-Chicken
  Tympanuchus pallidicinctus (Ridgway, 1873) -- valid -- Lesser Prairie Chicken, Lesser Prairie-Chicken
  Tympanuchus phasianellus (Linnaeus, 1758) -- valid -- Sharp-tailed Grouse, tétras à queue fine
  Typhlomolge Stejneger, 1896 -- invalid -- Texas Blind Salamanders
  Typhlomolge rathbuni Stejneger, 1896 -- invalid -- Texas Blind Salamander
  Typhlomolge robusta Longley, 1978 -- invalid -- Blanco Blind Salamander, Robust Blind Salamander
  Typhlopidae Merrem, 1820 -- valid -- Blind Snakes, Blindsnakes, Typical Blind Snakes
  Typhlops Oppel, 1811 -- valid -- Blind Snakes, Blindsnakes
  Typhlops granti Ruthven and Gaige, 1935 -- valid -- Grant's Blind Snake, Grant's Blindsnake
  Typhlops monensis Schmidt, 1926 -- valid -- Mona Blind Snake, Mona Blindsnake
  Typhlops richardii Duméril and Bibron, 1844 -- valid -- Richard's Blind Snake, Richard's Blindsnake
  Typhlops rostellatus Stejneger, 1904 -- valid -- Puerto Rican Wetland Blind Snake, Puerto Rican Wetland Blindsnake
  Typhlops sulcatus Cope, 1868 -- valid -- Sulcate Blind Snake, Sulcate Blindsnake
  Tyrannidae -- valid -- tyrans gobe-mouches, Tyrant Flycatchers
  Tyrannus Lacepede, 1799 -- valid -- Kingbirds
  Tyrannus caudifasciatus Orbigny, 1839 -- valid -- Loggerhead Kingbird
  Tyrannus couchii S. F. Baird, 1858 -- valid -- Couch's Kingbird, Tirano silbador
  Tyrannus crassirostris Swainson, 1826 -- valid -- Thick-billed Kingbird, Tirano pico grueso
  Tyrannus dominicensis (Gmelin, 1788) -- valid -- Gray Kingbird, Grey Kingbird, Tirano gris
  Tyrannus forficatus (Gmelin, 1789) -- valid -- Scissor-tailed Flycatcher, Tirano-tijereta rosado, tyran à longue queue
  Tyrannus melancholicus Vieillot, 1819 -- valid -- Tirano tropical, Tropical Kingbird
  Tyrannus savana Vieillot, 1808 -- valid -- Fork-tailed Flycatcher, Tirano-tijereta gris, tyran des savanes
  Tyrannus tyrannus (Linnaeus, 1758) -- valid -- Eastern Kingbird, Tirano dorso negro, tyran tritri
  Tyrannus verticalis Say, 1823 -- valid -- Tirano pálido, tyran de l'ouest, Western Kingbird
  Tyrannus vociferans Swainson, 1826 -- valid -- Cassin's Kingbird, Tirano gritón
  Tyto Billberg, 1828 -- valid -- Barn-Owls
  Tyto alba (Scopoli, 1769) -- valid -- Barn Owl, Common Barn-Owl, effraie de clochers, Lechuza de campanario
  Tytonidae -- valid -- Barn-Owls
  Uma Baird, 1859 -- valid -- Fringe-toed Lizards
  Uma inornata Cope, 1895 -- valid -- Coachella Valley Fringe-toed Lizard
  Uma notata Baird, 1859 -- valid -- Colorado Desert Fringe-toed Lizard, Lagartija-arenera del Colorado
  Uma scoparia Cope, 1894 -- valid -- Mojave Fringe-toed Lizard
  Upupa Linnaeus, 1758 -- valid -- Hoopoes
  Upupa epops Linnaeus, 1758 -- valid -- Common Hoopoe, Eurasian Hoopoe, Hoopoe
  Upupidae -- valid -- Hoopoes
  Uraeginthus Cabanis, 1851 -- valid -- Cordonbleus
  Uraeginthus bengalus (Linnaeus, 1766) -- valid -- Red-cheeked Cordon-bleu, Red-cheeked Cordonbleu
  Uria Brisson, 1760 -- valid -- Murres
  Uria aalge (Pontoppidan, 1763) -- valid -- Arao común, Common Murre, Guillemot marmette
  Uria lomvia (Linnaeus, 1758) -- valid -- Guillemot de Brünnich, Thick-billed Murre
  Urocyon Baird, 1857 -- valid -- gray foxes
  Urocyon cinereoargenteus (Schreber, 1775) -- valid -- Common Gray Fox, Gray Fox, renard gris, Zorra gris
  Urocyon littoralis (Baird, 1858) -- valid -- Channel Islands Gray Fox, Island Fox, Island Gray Fox
  Urodynamis Salvadori, 1880 -- valid -- Long-tailed Cuckoos
  Urodynamis taitensis (Sparrman, 1787) -- valid -- Long-tailed Cuckoo
  Urosaurus Hallowell, 1854 -- valid -- Brush Lizards, Tree Lizards
  Urosaurus graciosus Hallowell, 1854 -- valid -- Lagartija-arbolera cola larga, Long-tailed Brush Lizard
  Urosaurus microscutatus (Van Denburgh, 1894) -- invalid -- Lagartija-arbolera escamas chicas, Small-scaled Lizard
  Urosaurus ornatus (Baird and Girard, 1852) -- valid -- Lagartija-arbolera común, Ornate Tree Lizard, Tree Lizard
  Ursidae Fischer de Waldheim, 1817 -- valid -- bears
  Ursus Linnaeus, 1758 -- valid -- bears
  Ursus americanus Pallas, 1780 -- valid -- American Black Bear, black bear, Oso negro, ours noir
  Ursus arctos Linnaeus, 1758 -- valid -- Brown Bear, Grizzly Bear, Oso pardo
  Ursus maritimus Phipps, 1774 -- valid -- ours blanc, Polar Bear
  Uta Baird and Girard, 1852 -- valid -- Side-blotched Lizards
  Uta stansburiana Baird and Girard, 1852 -- valid -- Common Side-blotched Lizard, Lagartija-costado manchado común, Side-blotched Lizard
  Vanellus Brisson, 1760 -- valid -- Lapwings
  Vanellus vanellus (Linnaeus, 1758) -- valid -- Northern Lapwing, Vanneau huppé
  Varanidae -- valid -- Monitor Lizards, Monitors
  Varanus Merrem, 1820 -- valid -- Monitor Lizards
  Varanus indicus (Daudin, 1802) -- valid -- Indian Monitor, Indian Monitor Lizard
  Varanus salvator (Laurenti, 1768) -- valid -- Common Water Monitor
  Vermivora Swainson, 1827 -- valid -- Vermivoras
  Vermivora bachmanii (Audubon, 1833) -- valid -- Bachman's Warbler, Bachman's Wood Warbler, Paruline de Bachman
  Vermivora celata (Say, 1822) -- invalid -- Chipe corona naranja, Orange-crowned Warbler, paruline verdâtre
  Vermivora chrysoptera (Linnaeus, 1766) -- valid -- Chipe ala dorada, Golden-winged Warbler, Paruline à ailes dorées
  Vermivora crissalis (Salvin & Godman, 1889) -- invalid -- Chipe crisal, Colima Warbler
  Vermivora luciae (J. G. Cooper, 1861) -- invalid -- Chipe rabadilla rufa, Lucy's Warbler
  Vermivora peregrina (A. Wilson, 1811) -- invalid -- Chipe peregrino, paruline obscure, Tennessee Warbler
  Vermivora ruficapilla (A. Wilson, 1811) -- invalid -- Chipe de coronilla, Nashville Warbler, paruline à joues grises
  Vermivora virginiae (S. F. Baird, 1860) -- invalid -- Chipe de Virginia, Virginia's Warbler
  Vespertilionidae Gray, 1821 -- valid -- vespertilionid bats
  Vestiaria Jarocki, 1821 -- valid -- 'I'iwis
  Vestiaria coccinea (G. Forster, 1780) -- valid -- 'I'iwi, Iiwi
  Vidua Cuvier, 1816 -- valid -- Indigo-birds, Whydahs
  Vidua macroura (Pallas, 1764) -- valid -- Pin-tailed Whydah
  Vini Lesson, 1833 -- valid -- Vini Lories
  Vini australis (Gmelin, 1788) -- valid -- Blue-crowned Lorikeet, Blue-crowned Lory
  Viperidae Oppel, 1811 -- valid -- Pit Vipers, Vipers
  Vireo Vieillot, 1808 -- valid -- Vireos
  Vireo altiloquus (Vieillot, 1808) -- valid -- Black-whiskered Vireo, Vireo bigotudo
  Vireo atricapilla Woodhouse, 1852 -- valid -- black-capped vireo, Vireo gorra negra
  Vireo bellii Audubon, 1844 -- valid -- Bell's Vireo, Vireo de Bell
  Vireo crassirostris (H. Bryant, 1859) -- valid -- Thick-billed Vireo
  Vireo flavifrons Vieillot, 1808 -- valid -- viréo à gorge jaune, Vireo garganta amarilla, Yellow-throated Vireo
  Vireo gilvus (Vieillot, 1808) -- valid -- Vireo gorjeador, viréo mélodieux, Warbling Vireo
  Vireo griseus (Boddaert, 1783) -- valid -- viréo aux yeux blancs, Vireo ojo blanco, White-eyed Vireo
  Vireo huttoni Cassin, 1851 -- valid -- Hutton's Vireo, Vireo reyezuelo
  Vireo latimeri S. F. Baird, 1866 -- valid -- Puerto Rican Vireo
  Vireo olivaceus (Linnaeus, 1766) -- valid -- Red-eyed Vireo, viréo aux yeux rouges, Vireo ojo rojo
  Vireo philadelphicus (Cassin, 1851) -- valid -- Philadelphia Vireo, Vireo de Filadelfia, viréo de Philadelphie
  Vireo solitarius (A. Wilson, 1810) -- valid -- Blue-headed Vireo, Solitary Vireo, viréo à tête bleue, Vireo anteojillo
  Vireo vicinior Coues, 1866 -- valid -- Gray Vireo, Grey Vireo, Vireo gris
  Vireonidae -- valid -- Greenlets, Vireos
  Virginia Baird and Girard, 1853 -- valid -- Earth Snakes, Earthsnakes
  Virginia striatula (Linnaeus, 1766) -- valid -- Rough Earth Snake, Rough Earthsnake
  Virginia valeriae Baird and Girard, 1853 -- valid -- Smooth Earth Snake, Smooth Earthsnake
  Vulpes Frisch, 1775 -- valid -- kit foxes, red foxes
  Vulpes macrotis Merriam, 1888 -- valid -- Kit Fox
  Vulpes velox (Say, 1823) -- valid -- Swift Fox, Zorra desértica
  Vulpes velox velox (Say, 1823) -- invalid -- swift fox
  Vulpes vulpes (Linnaeus, 1758) -- valid -- Red Fox, renard roux
  Wilsonia Bonaparte, 1838 -- invalid -- Hooded Warblers
  Wilsonia canadensis (Linnaeus, 1766) -- invalid -- Canada Warbler, Chipe de collar, paruline du Canada
  Wilsonia citrina (Boddaert, 1783) -- invalid -- Chipe encapuchado, Hooded Warbler, paruline à capuchon
  Wilsonia pusilla (A. Wilson, 1811) -- invalid -- Chipe corona negra, paruline à calotte noire, Wilson's Warbler
  Xanthocephalus Bonaparte, 1850 -- valid -- Yellow-headed Blackbirds
  Xanthocephalus xanthocephalus (Bonaparte, 1826) -- valid -- carouge à tête jaune, Yellow-headed Blackbird, Yellow-headed Blackbird
  Xantusia Baird, 1859 -- valid -- Night Lizards
  Xantusia henshawi Stejneger, 1893 -- valid -- Granite Night Lizard, Henshaw's Night Lizard, Lagartija-escofina de granito
  Xantusia riversiana Cope, 1883 -- valid -- Island Night Lizard
  Xantusia vigilis Baird, 1859 -- valid -- Desert Night Lizard, Lagartija-escofina de desierto
  Xantusiidae -- valid -- Night Lizards
  Xenus Kaup, 1829 -- valid -- Terek Sandpipers
  Xenus cinereus (Guldenstadt, 1775) -- valid -- Chevalier bargette, Terek Sandpiper
  Zalophus Gill, 1866 -- valid -- California sea lions
  Zapus Coues, 1875 -- valid -- Jumping Mice
  Zapus hudsonius (Zimmermann, 1780) -- valid -- Meadow Jumping Mouse, souris sauteuse des champs
  Zapus princeps J. A. Allen, 1893 -- valid -- Western Jumping Mouse
  Zapus trinotatus Rhoads, 1895 -- valid -- Pacific Jumping Mouse
  Zenaida Bonaparte, 1838 -- valid -- Zenaida Doves
  Zenaida asiatica (Linnaeus, 1758) -- valid -- Paloma ala blanca, tourterelle à ailes blanches, White-winged Dove
  Zenaida aurita (Temminck, 1809) -- valid -- Paloma aurita, Zenaida Dove
  Zenaida macroura (Linnaeus, 1758) -- valid -- Mourning Dove, Paloma huilota, tourterelle triste
  Ziphiidae Gray, 1850 -- invalid -- beaked whales
  Ziphius G. Cuvier, 1823 -- valid -- goose-beaked whales
  Ziphius cavirostris G. Cuvier, 1823 -- valid -- Ballena-picuda de Couvier, Cuvier's Beaked Whale, goose-beaked whale, goosebeak whale
  Zonotrichia Swainson, 1832 -- valid -- Crowned Sparrows
  Zonotrichia albicollis (J. F. Gmelin, 1789) -- valid -- bruant à gorge blanche, Gorrión garganta blanca, White-throated Sparrow
  Zonotrichia atricapilla (J. F. Gmelin, 1789) -- valid -- Golden-crowned Sparrow, Gorrión corona dorada
  Zonotrichia leucophrys (J. R. Forster, 1772) -- valid -- bruant à couronne blanche, Gorrión corona blanca, White-crowned Sparrow
  Zonotrichia querula (Nuttall, 1840) -- valid -- bruant à face noire, Harris' Sparrow, Harris's Sparrow
  Zosteropidae Bonaparte, 1853 -- valid -- White-eyes
  Zosterops Vigors & Horsfield, 1827 -- valid -- Lesser White-eyes
  Zosterops cinereus (Kittlitz, 1832) -- valid -- Dusky White-eye, Grey-brown White-eye
  Zosterops conspicillatus (Kittlitz, 1833) -- valid -- Bridled White-eye
  Zosterops japonicus Temminck & Schlegel, 1845 -- valid -- Japanese White-eye
   

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