Red List Category
for more information about the Red List categories and criteria
Justification of Red List category
This species is widespread, from the low foothills to the highest alpine tarns; nonetheless, it persists in small numbers wherever it occurs, and its specialized habitat requirements ensure that its global population will remain small. It may be declining through hunting and habitat degradation and therefore qualifies as Vulnerable, although further information may show that it is less threatened than currently thought.
2500-9999 mature individuals
Distribution size (breeding/resident):
Land-mass type - shelf island - Continental islands include all other islands or island groups. Generally they were once part of continents and lie on a continental shelf of < 200 m sea depth.
Realm - Oceanic - realm
IUCN Ecosystem -- Freshwater biome