Asian Palm Swift

Scientific Name: Cypsiurus balasiensis
Malay Name: Layang-layang Palma Asia
Chinese Name: 棕雨燕

Range:
Found throughout Southeast Asia.

Taxonomy:
Polytypic. Subspecies are: balasiensis, infumatus, bartelsorum, pallidior.

Local Subspecies: infumatus

Size: 11-12 cm

Identification:
Resembles common swiftlet from far but has rather uniform greyish brown plumage, pale throat, long slender, sickle-shaped wings and distinctive long, deeply forked tail which appears long, narrow and pointed when closed. Looks very similar but is much smaller, more slender-looking and lack the diagnostic white rump-band of the Pacific Swift.

Similar looking species: Grey-rumped Treeswift, Pacific Swift, Common Swift

Habitat: Open habitat and urban areas.

Behaviour/Ecology: Feed on small insects egs. flying ants, termites and beetles taken in flight.

Local Status: Formerly common but now a scarce resident.

Conservation Status: Least Concern (BirdLife International 2016)

Location: Central Catchment Forest, Bukit Timah Nature Reserve, Bidadari, Singapore Botanic Gardens, Kent Ridge, Lorong Halus, Pulau Ubin, Thomson Road.

Photos:

External Links:
Conservation Status: IUCN Red List Page
Photos: Oriental Bird Images
Sound Recordings: xeno-canto Link
Wikipedia Entry: Wikipedia Link
eBird Species page: eBird (Asian Palm-Swift)

References:
BirdLife International. (2016). Cypsiurus balasiensis. The IUCN Red List of Threatened Species 2016. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22686769A93126438.en. Accessed on 19 December 2021

Robson, C. (2014). Field guide to the birds of South-East Asia (Second Edition). Bloomsbury Publishing, London.