Bangladesh, Cambodia, China (mainland), India, Indonesia, Japan, Laos, Malaysia, Myanmar, North Korea (B), Russia (Asian), Singapore, South Korea (B), Thailand, Vietnam.
Breeds south-eastern Russia (Amurland, Ussuriland), north-eastern and central China (northern and eastern Manchuria; western Sichuan), southern Sakhalin I, Korea and Japan. Non-breeding southern Myanmar east to southern Laos and south to Sumatra and Java.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).