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Asia, China, Global, Hong Kong, IndoChina, Japan, Korea, Laos, Russia, Taiwan, Thailand, Vietnam Read less
Asia, China, Global, Hong Kong, IndoChina, Japan, Korea, Laos, Russia, Taiwan, Thailand, Vietnam Read more
The global population size has not been quantified, but the species is reported to be uncommon to very rare (del Hoyo et al. 1997), while national population estimates include: < c.10,000 breeding pairs and < c.50 individuals on migration in China; c.100-100,000 breeding pairs in Taiwan an ...