Pale-rumped Swift

Medium-sized antpitta of floodplain forest, particularly with palmetto understory, along the confluence of the Ríos Madre de Dios and Bení in the Riberalta area. The only antpitta in range with dark chevrons on underparts or a blue-gray cap. Forages on or near the ground, but generally perches 1-2 m up in the understory or midstory to sing at dawn. Visually distinctive in range, but song deceptively similar to, and perhaps indistinguishable from, local songs of Amazonian Antshrike. Call a more distinctive three to four-part descending whistle.

Medium-sized thrush of montane forests. Looks large and bulky compared to other thrushes in range; note male’s distinctive black head contrasting with brownish-olive body and yellow bill and legs. Female is similarly patterned but much duller. Found in highland forest and second growth, generally above 800 meters, where it is often the most common thrush. Most reliably seen at fruiting trees, where many individuals may congregate; also often seen at middle levels of forest, where it may take conspicuous perches to assess an observer before flying off. Song is a halting series of phrases, many of them doublets, generally alternating between rich, low notes and high reedy ones; call note is a rich, liquid bark. Male is unlikely to be confused with other species; female could be confused with female Pale-eyed Thrush but is larger, has darker eyes with distinct eyering and a semblance of male’s hooded look.

Small hummingbird with a long white-tipped tail. Its rufous underparts, green back, and striped face are features typical of many hermits, but the dark throat and white vent help separate it from other similar species. Inhabits rainforest understory in lowlands east of the Andes and in adjacent foothills. It is difficult to see well as it zips between flowers in the gloom. Sometimes gives a high-pitched, squeaky song from a low perch.