Bare-legged Swiftlet Aerodramus nuditarsus Scientific name definitions

14 cm. Large swiftlet with shallow tail-fork; dark brown above, rump uniform, with extensive pale fringes on lores and over eye; uniformly sooty-grey underparts; apparently some variation in rami colouring. Bare tarsi, glossless upperparts and presence of 4 toes distinguish present species from A. papuensis. No information available as to whether or not species is capable of echolocation.

C, S & SE New Guinea. May breed N of central watershed in Schrader Range.

Collected mainly in highlands, though also as low as 30 m above sea-level.

Resident.

Nothing known.

No information.

No information available.

Not globally threatened. Restricted-range species: present in Central Papuan Mountains EBA. Believed to be uncommon, and certainly species is relatively uncommon in museum collections. Biology and ecology almost totally unknown; extensive research required.