White-rumped Swiftlet

Aerodramus spodiopygius

A small, mostly gray swiftlet, paler beneath with a pale throat and darker cap. White rump varies from white to pale gray. Occurs over a wide range of habitats up to 1900 meters of elevation. Similar to both Uniform Swiftlet and Mayr’s Swiftlet, but smaller, with a paler rump. Main call is a pleasant twitter, “twee-twee-chew-chew.”

Taxonomy

Scientific name
Aerodramus spodiopygius
Authority
(Peale, 1849)
Order
Apodiformes
Family
Apodidae
Genus
Aerodramus

Range and habitat

Migration
Resident species

Conservation

Population trend
stable

Photos

Distribution

Other Birds

Bornean Frogmouth

Bornean Frogmouth

Batrachostomus mixtus

Small stout frogmouth with a face full of wispy whiskers. Males are dark brown overall; females are bright rufous. Restricted to Borneo’s central and southern mountain ranges, where it inhabits foothill and lower montane forest. Similarly-sized Sunda Frogmouth mostly found in lowland forest. Blyth’s Frogmouth is proportionally longer-tailed, with stronger white markings on the wings and underparts. Vocalizations vary and are poorly understood; frequently gives a mournful descending whistle and a fluid, rippling, downslurred trill.

Helmeted Curassow

Helmeted Curassow

Pauxi pauxi

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Yellow-billed Egret

Yellow-billed Egret

Ardea brachyrhyncha

A stocky egret that is larger than Western Cattle and Little Egrets, but smaller than the Great Egret. Often confusing and difficult to identify, this bird is truly intermediate between potential confusion species. Things to look for include a yellow bill (brighter during breeding season) that is shorter than Great Egret but longer than Cattle Egret, a relatively rounded head, and shorter legs than Great Egret, approaching Cattle Egret. Like most egret species, associates with all types of water bodies including wet fields, often flocking with other egrets.

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White-rumped Swiftlet | BirdLens