Small, round-headed warbler with a short tail. Yellow below with an olive-green back and no wingbars. Its white eyering stands out on the gray head. Chestnut crown patch usually not visible. Birds in the western U.S. have a brighter yellow rump and grayer back than those in the eastern U.S.
Compact warbler with a round head. Females/immatures are paler than males. Note eyering, yellow underparts, and lack of wingbars.
Immature birds are paler than adults. Note eyering, yellow underparts, and lack of wingbars.
Compact warbler with a round head. Females/immatures are paler than males. Note eyering, yellow underparts, and lack of wingbars.
Birds in the eastern U.S. are slightly duller yellow than birds in the western U.S. Note eyering, yellow underparts, and lack of wingbars.
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A small songbird, compact with a round head, plump body and shortish tail. The bill is fine, straight, and pointed.
Smaller than a White-breasted Nuthatch, larger than a Blue-gray Gnatcatcher.
sparrow-sized or smallerNashville Warbler has two populations: a form that occurs in the mountains of the West Coast and is often called “Calaveras Warbler”; and a more widespread form that breeds across northeastern and north-central North America. The "Calaveras" form is brighter across the underparts and on the back than the eastern form, with a longer tail that it often bobs while foraging.
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