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"Blue-gray Gnatcatcher (Poliptila caerulea). The blue-gray gnatcatcher, Polioptila caerulea, is a very common migratory insectivorous bird inhabiting woodlands of the United States." -Whitney, 1911

Blue-Gray Gnatcatcher

"Blue-gray Gnatcatcher (Poliptila caerulea). The blue-gray gnatcatcher, Polioptila caerulea, is a very…

Its song is loud, cheerful, and much diversified, night being generally selected for the display of its vocal power, (Figuier, 1869)

Warbler

Its song is loud, cheerful, and much diversified, night being generally selected for the display of…

The Sedge Warbler (Acrocephalus schoenobaenus) is a small passerine bird in the Sylviidae family.

Sedge Warbler

The Sedge Warbler (Acrocephalus schoenobaenus) is a small passerine bird in the Sylviidae family.