Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This wide-ranging and long-lived species has a very small population which is declining very rapidly. For these reasons it is classified as Endangered. Recent breeding failures in Assam (the species's stronghold) provide cause for concern and need to be closely monitored.
800-1200 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