Xiamen (Amoy), Fujian, China.
Previously treated as conspecific with A. tangorum, but recent DNA studies indicate genetic difference between the two in excess of 9.5%, and morphological studies support treatment as separate species. Two recently described races, sachalinensis (Sakhalin) and voronovi (Kunashir I, Veselovskogo Peninsula)#R, require evaluation. Provisionally treated as monotypic.
SE Russia (SE Siberia, Amur Valley, Ussuriland), NE & E China, Korean Peninsula (scarce), Sakhalin and Japan (Hokkaido S to C Honshu, locally Kyushu); non-breeding NE India E to S & SE China and Taiwan (uncommon) S to Malay Peninsula, rarely N Sumatra.
Food and feeding
Status and conservation
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