Grey-rumped Treeswift

Scientific Name: Hemiprocne longipennis

Malay Name: Layang-layang Berjambul Pinggul Pudar

Chinese Name: 灰腰凤头雨燕

Range: Found from Southern Thailand, Malaysia, Singapore to Indonesia.

Taxonomy: Polytypic. Subspecies are: harterti, perlonga, longipennis, wallacii.

Local Subspecies: harterti

Size: 18-21.5 cm

Identification: A rather big swift-like bird with dark glossy greenish crown, nape and mantle, blackish lores, greyish throat, whitish underparts. Tail-tip falls short of primary wing tips when perched. In flight, greyish back and rump contrast with dark mantle and has contrasting blackish underwing coverts. Male has chestnut ear-coverts while female has blackish ear-coverts.

Similar looking species: Whiskered Treeswift, Asian Palm Swift, Pacific Swift

Habitat: Open habitat, parkland and forested area.

Behaviour/Ecology: Feed on small insects taken in flight. Usually perch high up on tree.

Local Status: Uncommon resident

Conservation Status: Least Concern (BirdLife International 2022)

Location: Central Catchment Forest, Bukit Timah Nature Reserve, Bukit Batok Nature Park, Bidadari, Singapore Botanic Gardens, Kent Ridge Park and Bishan Park.


BirdLife International. (2022). Hemiprocne longipennis. The IUCN Red List of Threatened Species 2022. Accessed on 1 January 2023

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

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