Data for:
Adult © Michael Stubblefield eBird S108126823 Macaulay Library ML 465321921
Adult © Evan Lipton
Adult © Jim Gain
Adult (San Lucas) © Timo Mitzen
Adult © Chris McCreedy - no playbacks
+ 2
Habitat © Gordon Dimmig

Cassin's Vireo Vireo cassinii

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Identification

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Fairly dull vireo, intermediate between Blue-headed and Plumbeous. Grayish-olive overall, but with yellowish flanks and greenish back. Note white spectacles contrasting with gray head and two whitish wingbars. Breeds in mixed coniferous forests, especially in mountainous areas; winters in Mexico. Often separable from Blue-headed and Plumbeous Vireos by range, but can overlap during migration and winter. Cassin's is less contrasty than Blue-headed, especially between the gray face and whitish throat, and the greenish back blends into the nape and crown. Some birds are best left unidentified.

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Kootenay NP--McLeod Meadows/Dog Lake

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Kootenay NP--McLeod Meadows/Dog Lake

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Kootenay NP--McLeod Meadows/Dog Lake