Gray-faced Tit-Babbler

Gray-brown swiftlet with a pale gray rump and a squared-off tail. The westernmost ranging species in the genus and the only member throughout much of its range. Smaller than most other swifts in range except for House Swift, which is black overall with a sharp white rump and throat. Tends to travel in small to medium-sized flocks, often swooping low over bodies of water. Builds dark bowl-shaped nests in closely-clustered colonies under rocky overhangs, in caves, and in old buildings. Gives clicking calls and twitters, especially when near colonies.

Small short-tailed warbler; bright and boldly patterned. Blue-gray above with green back, two bold white wingbars (limited white in Middle American birds), and yellow-orange throat and chest. Males have darker face and brighter yellow-orange chest than females. Bill is sharp, black above and yellow below. Very similar to Northern Parula; note lack of white eyearcs and no dark markings on breast. Beware of rarely-occurring hybrids and some dull immatures, which can be very similar to Northern Parula. Common and widespread in forests throughout Central and South America; rare in U.S.; found only in mossy forests in southern Texas.

A drab-colored and inconspicuous species typically found from the middle level to the canopy in woodlands, where it mostly feeds on fruits. This species can be distinguished from similarly shaped and colored Pearly-eyed Thrasher by its short dark bill and barred, not streaked, underparts. Song is a deliberate series of high-pitched squeaks and lower-pitched whistles. Most common call is a high, thin whistle.