Olive-winged Bulbul

An enormous, long-tailed swift of lowland and foothill forest edge. In flight, long, thin wings with a white line behind the black trailing edge, and a long, forked tail usually held to a point. When perched in trees, shows 2 white plumes along the face, and males have a rusty ear-patch between. Often seen flying at dawn and dusk. The only treeswift in its range and no other swift comes close to the size or tail length. A sharp “kwik! kwik! kwik” or downward, raptorlike “kweeuu!”.

A fairly large bird of foothill and adjacent lowland forest understory. Brown upperparts, rufous underparts, head feathers coming to a bushy crest at the back, and a thick black bill. Similar to Rusty Pitohui, but Piping Bellbird has a crest and lacks the pale eye. Very shy and heard much more often than seen. Incessantly repeated, monotonous, medium-pitch piping note.

Small and fairly bright antpitta found in foothills and subtropics from Costa Rica to Bolivia. Typical antpitta shape: plump and short-tailed. Dull brown above. Messy-looking buffy face and eyering. Some geographic variation: breast color varies from buffy to whitish, and some populations show bold dark scaling on breast, while others are nearly unmarked. Sexes similar. Shy and difficult to see; stays on or near the ground in forest, often perching on small limbs a couple meters high (more so than the larger antpittas). Swings its body side to side. Song can be difficult to detect: a simple, extremely high pitched, descending whistle. Occurs from around 500–2,500 m, usually lower than other small antpittas.