Moustached Treeswift
Hemiprocne mystacea
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!”.
Taxonomy
- Scientific name
- Hemiprocne mystacea
- Authority
- (Lesson, RP & Garnot, 1827)
- Order
- Apodiformes
- Family
- Hemiprocnidae
- Genus
- Hemiprocne
Range and habitat
- Migration
- Resident species
Conservation
- Population trend
- stable
Photos
Distribution
Bird Calls
Other Birds

Ocellated Poorwill
Nyctiphrynus ocellatus
Dark brown nightjar of humid forests. Smooth reddish brown overall with small black spots, a clean white throat band, and white tail corners. In flight, appears dark brown overall with white tail corners but no white wing patches. Look for it in mature rainforest, with or without dense understory. Song is a single quavering, reverberating note, “PEEur,” like plucking a taut string.

Rufous-tailed Flatbill
Ramphotrigon ruficauda
Smallish flycatcher, characteristic of forests on sandy soils and seasonally flooded forests. Heard more often than seen. Best told by bright rufous tail and flight feather edges contrasting with greenish-brown body. Singles or pairs inhabit the mid-story of tall forest and typically do not associate with other species. Sits upright and sallies to foliage for insects. In western Amazonia, told from Dusky-tailed Flatbill by clearer (less mottled) breast and extensive rufous in wings and tail. Voice is a single, lazy whistle, with characteristic strong inflection in the middle.

Chestnut Thrush
Turdus rubrocanus
An attractive thrush of moist foothill and montane coniferous and mixed forests. Favors areas with dense, shady understory and extensive ground cover. Combination of gray head, black wings, and orange back and belly is unique; most other large forest thrushes in its range are dark overall. Usually seen singly, but will occasionally forage in small groups. Song, as with many other thrushes, varies individually, but usually consists of short, breathy individual phrases, often whistled. Gives slick “tsk, tsk” in alarm, as well as hard rattling calls.
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