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Popular traits
1,996 bird species
Mergus merganser
Quiscalus quiscula
Setophaga coronata
Sitta carolinensis
Larus smithsonianus
Leuconotopicus villosus
Bucephala albeola
Cathartes aura
Zonotrichia albicollis
Bucephala clangula
Lophodytes cucullatus
Cygnus buccinator
Dryocopus pileatus
Gavia immer
Charadrius vociferus
Spizella passerina
Zonotrichia leucophrys
Tachycineta bicolor
Pandion haliaetus
Setophaga aestiva
Sitta canadensis
Mareca americana
Corvus corax
Tyrannus tyrannus
Antigone canadensis
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