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4,118 species in Yellowstone National Park
Larus californicus
Catharus guttatus
Pinus contorta
Ursus americanus
Dendragapus obscurus
Gallinago delicata
Contopus sordidulus
Porzana carolina
Antilocapra americana
Nannopterum auritum
Sphyrapicus thyroideus
Ursus arctos
Spatula discors
Bombycilla cedrorum
Catharus ustulatus
Canis latrans
Bucephala clangula
Larus delawarensis
Geothlypis trichas
Passer domesticus
Passerina amoena
Empidonax oberholseri
Aechmophorus occidentalis
Geothlypis tolmiei
Stelgidopteryx serripennis
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