From Opus

Aerodramus infuscatus

[edit] Identification

A small Swiftlet (10cm), very similar to Uniform Swiftlet and Glossy Swiftlet and very difficult to identify in field.

• Black-brown upperparts
• Rump uniform or slightly paler, sororum has distinct grey-white rump band
• Pale-brown underparts
• Forked tail
• In hand: extensively white rami on rump feathers

[edit] Distribution

Found in Indonesia on Sulawesi and the Moluccas.
Common in parts of its range.

[edit] Taxonomy

Forms a superspecies with Philippine Swiftlet, Mountain Swiftlet, White-rumped Swiftlet and Australian Swiftlet. Also considered to be conspecific with White-rumped Swiftlet. Relationsships in this group are still poorly understood.
Like other Aerodramus Swiftles this species is often placed in Collocalia.
Three subspecies recognized:

• A.i. infuscatus on the Northern Moluccas
• A.i. ceramensis on the Southern Moluccas
• A.i. sororum on Sulawesi

[edit] Habitat

Moist lowland forest and montanes. Generally higher than other Swiftlets.

[edit] Behaviour

Feeds on insects, taken in flight. Noted to feed above canopy while Glossy Swiftlet is feeding beneath canopy level.
Not much information about nesting. Believed to make a nest with vegetable matter, attached to a cave wall.
Thought to be resident or nomadic within range.

[edit] External Links