Brunei Bay

IBA Justification

The site was identified as important in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Bonaparte's Nightjar Caprimulgus concretus VU resident 2004 present A1
Lesser Adjutant Leptoptilos javanicus NT resident 2004 present A1
Storm's Stork Ciconia stormi EN resident 2004 present A1
Chinese Egret Egretta eulophotes VU non-breeding 1986 15-25 individuals A1
Greater Sandplover Charadrius leschenaultii LC winter 2004 present A4i
Spotted Greenshank Tringa guttifer EN winter 2004 present A1
Roseate Tern Sterna dougallii LC non-breeding 2004 present A4i
A4iii Species group - waterbirds n/a unknown 2004 min 20,000 individuals A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2004).


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Wetlands (inland) -
Forest -
Marine Neritic -
For more information about the IUCN Habitat classification, please click here.

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Brunei Bay. Downloaded from on 04/03/2024.