Scientific Name: Cypsiurus balasiensis
Malay Name: Lelayang-Palma Asia
Chinese Name: 棕雨燕 (zōng yǔ-yàn)
Range: Found throughout Southeast Asia.
Taxonomy: Polytypic. Subspecies are: balasiensis, infumatus, bartelsorum and pallidor.
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.
Feed on small insects egs. flying ants, termites and beetles taken in flight.
Local Status: Formerly common but now a scarce resident.
Central Catchment Forest, Bukit Timah Nature Reserve, Bidadari, Singapore Botanic Gardens, Kent Ridge, Lorong Halus, Pulau Ubin, Thomson Road.
Craig Robson (2011) A Field Guide to the Birds of South-East Asia