The name "vireo" comes from a Latin word that means "to be green," and most of these birds are olive-green, gray and yellow. They look like warblers, but are "chunkier" with heavier bills slightly hooking at the tips. They are also less active (they don't flit quickly through the trees, like the warblers). and feed methodically on insects found beneath the leaves.

Blue-headed Vireo

This is a medium-sized vireo, with
bluish gray head, white spectacles,
2 white wingbars, white belly 
and yellowish flanks.

White-eyed Vireo
This noisy (almost fearless) little bird has a loud scolding song, but it also has a lot of sounds that resemble other birds. This is our only vireo with two white wing bars, yellow spectacles and yellowish sides.