Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species has not been recorded with certainty since 1978, despite some recent surveys. It is likely to have declined as a result of habitat degradation and destruction at the (unknown) breeding areas and on wintering grounds, exacerbated by hunting and trapping at roost-sites. However, it may well remain extant, and surveys are required in putative breeding areas, particularly in Myanmar. Any remaining population is likely to be tiny, and for these reasons it is treated as Critically Endangered.
1-49 mature individuals
Distribution size (breeding/resident):
Land-mass type - continent - Continents are land masses > bigger than Australia (=7,682,300 sq km).
Realm - Indomalayan - realm
Realm - Palearctic - realm
IUCN Ecosystem -- Freshwater biome
IUCN Ecosystem -- Terrestrial biome