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Bare-legged Swiftlet

Aerodramus nuditarsus

Least Concern
Wingspan
25.0 cm
Weight
13.3 g
Family
Apodidae
Order
Caprimulgiformes

About

A small swiftlet (10-11 cm) found in New Guinea, particularly in lowland and hill forests. Distinguished by its bare, featherless tarsi. Dark plumage. Aerial insectivore. Colonial cave nester. Uses echolocation for cave navigation. Limited published ecological data.

Physical Description

Measurement Value Imperial
Wingspan 25.0 cm 9.8 in
Weight 13.3 g 0.47 oz

Identification

Plumage

Small; dark grey-brown upperparts; pale rump band; underparts whitish-grey; forked tail; bare unfeathered tarsi distinctive among swiftlets; New Guinea lowland cave-nesting species; bare legs visible at nest but rarely field-observable.

Habitat & Range

Geographic Range

Found in lowland New Guinea and adjacent islands. Resident in lowland rainforest and forest edge. Little-known Papuan endemic.

Diet & Feeding

Obligate aerial insectivore; catches minute flies, beetles, and aerial spiders while foraging near cave roosts.

Conservation Status

Least Concern
IUCN Red List

Sound

Song

High thin twittering; 'tsit-tsit' over New Guinea lowlands; echolocation clicks in cave roosts; calls weakly in flight; colonial nester producing soft flock chattering

Taxonomy

Kingdom Animalia
Phylum Chordata
Class Aves
Order Caprimulgiformes (Nightjars & Swifts)
Family Apodidae (Swifts)
Genus Aerodramus
Species Aerodramus nuditarsus

Distribution

Bare-legged Swiftlet has been recorded in 1 countries.

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Present Not recorded
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countries highlighted

External Databases

Frequently Asked Questions

What does the Bare-legged Swiftlet eat?
Obligate aerial insectivore; catches minute flies, beetles, and aerial spiders while foraging near cave roosts.
Where does the Bare-legged Swiftlet live?
Found in lowland New Guinea and adjacent islands. Resident in lowland rainforest and forest edge. Little-known Papuan endemic.
Is the Bare-legged Swiftlet endangered?
The Bare-legged Swiftlet has a conservation status of Least Concern.
What does the Bare-legged Swiftlet sound like?
High thin twittering; 'tsit-tsit' over New Guinea lowlands; echolocation clicks in cave roosts; calls weakly in flight; colonial nester producing soft flock chattering
How big is the Bare-legged Swiftlet?
The Bare-legged Swiftlet has a wingspan of 25.0 cm, weight of 13.3 g.
What order and family does the Bare-legged Swiftlet belong to?
The Bare-legged Swiftlet (Aerodramus nuditarsus) belongs to the order Caprimulgiformes and the family Apodidae.

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