Fluffy-backed Tit-Babbler

Boldly-patterned sparrow found in montane forests from Bolivia to northwestern Argentina. Usually in pairs on or near the ground, foraging at the edge of forest. Note the bicolored bill with an orange-yellow lower mandible. Also look for the bold black-and-white head pattern, black chest band, and bright mossy-green back. The song is a series of high-pitched notes.

Striking warbler with vastly different male and female plumages. Males are unique deep blue above with black face and sides and white belly. Females are plain brownish-olive with dingy buffy underparts and subtle face pattern. Always look for small white patch on the wing, lacking only on the dullest immature females. Breeds in the understory of mixed forests, favoring hills with dense vegetation. Found in nearly any wooded or shrubby habitat during migration. Winters primarily in the Caribbean. Listen for lazy buzzy song, usually a series of notes with a final long buzz.

Small, drab, olive-green tinkerbird. The most distinctive markings are two yellow wingbars and a yellow rump. Also note the mostly dark bill with a pink base. Found in forest and lush woodland. Usually detected by voice: accelerating trilled phrases that are repeated, sometimes for a long time. Also gives a slower series of several tooting notes. Very similar to Moustached Tinkerbird, but only overlaps slightly in range, and separated by the plain face.