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Taxon author: Swainson, 1826

ITIS records citing taxon author "Swainson, 1826"
 
 Kingdom Animalia
  Tyrannus crassirostris Swainson, 1826 -- valid -- Thick-billed Kingbird, Tirano pico grueso
  Tyrannus crassirostris crassirostris Swainson, 1826 -- valid
  Tyrannus vociferans Swainson, 1826 -- valid -- Cassin's Kingbird, Tirano gritón
  Tyrannus vociferans vociferans Swainson, 1826 -- valid
   

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