Formerly known as: Solitary Video
Recently split into three separate species by American ornithologists: Cassin's, Plumbeous, and Blue-headed Vireos.
Range stretches from British Columbia and southwestern Alberta through central Idaho, across to coastal Washington and Oregon, south to southern California. Spend the winter months from southern Arizona to southern Mexico.
Plumage is olive above and whitish below, with a yellowish wash on their sides and flanks, white throats, and gray heads. They have white wing bars and two solid eye rings that extend to the brow, making them look as if they are wearing spectacles. Thick bill with hooked upper beak