Species fact sheet by Global Register of Migratory Species - www.groms.de

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Almost completely migratory, although sedentary in Taiwan. Some birds winter in SE China, in Guangdong and on Hainan; most move farther S, reaching Indochina, peninsular Malaysia, Philippines, Greater and Lesser Sundas, Sulawesi and W tip of New Guinea. Major migration route through Korea, W Kyushu (Japan) and Ryukyu Is towards Taiwan; migration detected in Sept and early Oct, but not well known in spring. Considerable movement recorded over Bali, where 924 birds seen from early Oct to early Nov 1990; movement over N Sulawesi in early Mar and early Oct. Birds arrive in Ussuriland in early May.   (del Hoyo J, Elliott A, Sargatal J (eds), 1994)

• digitised by GROMS, after del Hoyo J A Elliott; J Sargatal (eds) (1994) - www.hbw.com,
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