Scientific Name: Cypsiurus balasiensis
Malay Name: Layang-layang Palma Asia
Chinese Name: 棕雨燕
Found throughout Southeast Asia.
Polytypic. Subspecies are: balasiensis, infumatus, bartelsorum, pallidior.
Local Subspecies: infumatus
Size: 11-12 cm
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.
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.
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.