By מינוזיג - MinoZig (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons
Asia. Turkey eastwards to Mongolia and eastern China
A species that was released for game shooting until it became illegal in 1993, and perhaps it still continues to some extent though the species is probably in decline in Britain. Birds were being sold on Preloved.co.uk in 2017 (£50/pair) so occasional birds are still likely to escape.