Gillett's Lark

Uncommon swallow in montane forest in the Andes from Venezuela to Bolivia. Similar to the more common Blue-and-white Swallow, but look for the buffy throat and browner flanks on Pale-footed Swallow. Found in flocks, usually not far from forest. Not frequently found around human settlements unlike Blue-and-white Swallow. Occurs from around 2,400–3,200 m.

Medium-sized bush warbler. Brown with a white throat, pale buffy brow, and rufous crown. Gray-sided Bush Warbler is similar but smaller, with a whiter brow stripe and paler, more gray-toned sides. Chestnut-crowned can be separated from other bush warblers by a combination of its size, bright rufous crown, and strong head pattern. Breeds in foothill and montane areas up to the treeline; prefers dense shrubby areas, particularly with an abundance of rhododendrons. In the winter, descends into lower foothill and lowland areas with scrubby edge growth. Song is a sharp, high “tih-wih-wih-wihr.” Calls include a sharp, bunting-like “tseep.” 

Small warbler with a small bill and a large-headed appearance. Similar to other leaf warblers, but Brooks’s Leaf Warbler has the combination of a dark bill with a pale base, yellow on face and breast, yellow crown stripe, and at least one white wingbar (often two). Forages in a restless manner in the mid-canopy of spruce and fir forests in the summer and dry scrub forests in the winter. The distinctive song consists of high-pitched “zip-zip-zip-...” notes followed by a dry trill. The call is a short “chee-up” similar to that of a Greenish Warbler.