Black-capped VireoVireo atricapilla
4 1/2 -4 3/4" (11-12 cm). Smaller than a sparrow. Olive green above, white below; crown and sides of head glossy black; white "spectacles." Female similar, but crown and sides of head slate-gray.
Harsh and varied phrases, sometimes musical.
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Dense oak scrub and juniper thickets.
Breeds from Kansas south through Oklahoma to central Texas. Winters in Mexico.
This little vireo, with its restricted range, differs from most vireos in being rather nervous and active-more like a warbler in its behavior. It is a tireless singer but is often difficult to find in the dense oak scrub. It has a titmouse-like habit of hanging upside down while foraging among twigs.
4 unspotted white eggs in a well-made pendant cup of plant fibers and bark strips decorated with lichens and concealed in a shrub or bush.