Scientific Name: Aerodramus fuciphagus
Alternative Name: Thunberg’s Swiftlet
Malay Name: Lelayang-Gua Sarang Putih
Chinese Name: 爪哇金丝燕
Found from Java, Sumatra, Borneo, Bali, Lesser Sundas, Singapore to Andaman and Nicobar Islands.
Polytypic. Subspecies are: inexpectatus, vestitus, perplexus, fuciphagus, dammermani, micans
Local Subspecies: fuciphagus
Size: 11-12 cm
Identification: Indistinguishable from Black-nest Swiftlet when seen in flight. Can only be identified conclusively with a bird in hand (from the lightly feathered to naked tarsi) or at its nest which is all white. Lays two eggs as opposed to one egg of the Black-nest Swiftlet.
Habitat: Recorded over a wide variety of habitats, forests, clearings, coast, lowlands, mountains and also out at sea.
Behaviour/Ecology: Feed on small insects taken in flight. Gregarious and often forage in big flocks together with other swiftlet species and swallows.
Local Status: Common resident
Location: Throughout Singapore. Known to nest in Sentosa.
Craig Robson (2011) A Field Guide to the Birds of South-East Asia
Earl of Cranbrook, et al (2013) The species of white-nest swiftlets (Apodidae, Collocaliini) of Malaysia and the origins of house-farm birds: morphometric and genetic evidence found in Forktail 29, pp. 107-119