Asian Openbill

Scientific Name: Anastomus oscitans
Malay Name: Upih-Siput Asia
Chinese Name: 钳嘴鹳

Found from the Indian subcontinent to mainland Southeast Asia


Size: 68-81 cm

Adult has diagnostic dull yellowish-grey bill with open spaces between mandibles and long pinkish-grey legs. Body is mostly greyish-white with contrasting glossy black flight feathers and tail. Juvenile likes adult but body more brownish grey and bill has no spaces between mandibles.

Habitat: Freshwater marshes, flooded fields and padi fields.

Behaviour/Ecology: A small flock of 6 adults were observed feeding on Golden Apple Snails (an introduced species) at a flooded field along West Camp Road.

Local Status: Very rare non-breeding visitor

Conservation Status: Least Concern (BirdLife International 2016)

Location: Sighted in January 2013 at Neo Tiew Lane 2, Punggol Barat and Seletar (West Camp Road).


External Links:
Conservation Status: IUCN Red List Page
Photos: Oriental Bird Images
Sound Recordings: xeno-canto Link
Wikipedia Entry: Wikipedia Link

BirdLife International. (2016). Anastomus oscitans. The IUCN Red List of Threatened Species 2016. Downloaded on 2 September 2021
Robson, C. (2008). A Field Guide to the Birds of South-East Asia. New Holland Publishers.