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

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Migratory. Migrates along coasts of E Asia. During non-breeding season occurs at scattered localities on coasts of E, SE & SC Asia. Migrates N through E Russia from late May to early Jun; after breeding season, adults migrate Jul to late Aug, females first, and juveniles early Aug to mid-Oct. Most frequented stopover areas are S Sakhalin and W Kamchatka. Occurs on passage in North and South Korea, Japan, Taiwan, Hong Kong and E China, chiefly in late Apr to May and Sept; small numbers recorded wintering in Vietnam, Thailand, Peninsular Malaysia, Singapore, Myanmar, Bangladesh, E India and Sri Lank; large numbers observed only in Bangladesh; vagrant to Alaska and Canada. Main wintering area or areas still undiscovered.   (del Hoyo J, Elliott A, Sargatal J (eds), 1996)

• digitised by GROMS, after del Hoyo J A Elliott; J Sargatal (eds) (1996) - www.hbw.com,
• Copyright: GROMS/BfN - www.groms.de
  
  (A digitised version of this map is published in GIS shape format on the GROMS CD).