China (mainland) (NB), Japan (NB), North Korea (NB), Russia (Asian) (B) (NB), South Korea (NB).
Vagrant to Taiwan (China), USA (NB).
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 5,000 (2010) and decreasing.
Status VU
Habitat alteration for development and logging for timber, industrial pollution of rivers, over-fishing leading to an increasing tendency of birds on Hokkaido to move inland and scavenge on sika deer carcasses left by hunters, exposing them to a risk of lead poisoning through ingestion of lead shot, are the main threats.
For more information see BirdLife International Species Factsheet.