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Popular traits
5,133 species in Big Bend National Park
Sayornis nigricans
Tyrannus verticalis
Lanius ludovicianus
Piranga ludoviciana
Leiothlypis crissalis
Catharus guttatus
Contopus sordidulus
Vireo huttoni
Pipilo chlorurus
Psaltriparus minimus
Coragyps atratus
Chondestes grammacus
Micrathene whitneyi
Passer domesticus
Chordeiles acutipennis
Buteogallus anthracinus
Spinus pinus
Setophaga townsendi
Falco sparverius
Spizella breweri
Buteo plagiatus
Toxostoma crissale
Spizella pallida
Junco hyemalis
Pooecetes gramineus
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