Mountain swiftlet

Mountain swiftlet
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Clade:	Strisores
Order:	Apodiformes
Family:	Apodidae
Genus:	Aerodramus
Species:	A. hirundinaceus
Binomial name
Aerodramus hirundinaceus (Stresemann, 1914)
Synonyms
Collocalia hirundinacea

The mountain swiftlet (Aerodramus hirundinaceus) is a species of

and other mountainous habitats in New Guinea. It also occurs in lower numbers in the lowlands near hills.

The mountain swiftlet is a medium-sized swiftlet, 11–13 cm long. It has dark brown upperparts and paler grey undersides. The tail is slightly forked. The subspecies vary slightly from the nominate race, A. h. baru has browner underparts and darker upperparts, while A. h. excelsus is larger than the nominate race. Like other members of the genus this species is able to echolocate, a trait it uses to navigate itself in the caves it breeds in.

Like the rest of its genus it breeds in caves, constructing nests of vegetation such as ferns, rootlets and grasses, or lichens, held together with saliva.^[4] They are colonial, but the caves examined so far do not suggest that they nest densely. The peak of the breeding season is October through December, but there are occupied nests through most of the year. The clutch size is a single egg for this species. The nestling period, between 57 and 74 days, is one of the longer chick raising periods of any swifts. This is counteracted by a comparatively high breeding success rate, with 61% of mountain swiftlets successfully raising chicks.^[4]

References