Birds of the World

Bare-legged Swiftlet Aerodramus nuditarsus Scientific name definitions

Philip Chantler and Peter F. D. Boesman
Version: 1.0 — Published March 4, 2020
Text last updated July 10, 2014

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Field Identification

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.

Systematics History

Has been thought to be close to A. orientalis, and thence also linked with A. whiteheadi. Monotypic.

Subspecies

Monotypic.

Distribution

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

Habitat

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

Movement

Resident.

Diet and Foraging

Nothing known.

Sounds and Vocal Behavior

No information.

Breeding

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.

Distribution of the Bare-legged Swiftlet - Range Map
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  • Year-round
  • Migration
  • Breeding
  • Non-Breeding
Distribution of the Bare-legged Swiftlet

Recommended Citation

Chantler, P. and P. F. D. Boesman (2020). Bare-legged Swiftlet (Aerodramus nuditarsus), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.balswi1.01
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