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

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Migratory. Leaves breeding grounds Jul-Sept. Main flyway via Transbaikalia, E of L Baikal, with smaller numbers in broad front from E Kazakhstan to Sea of Okhotsk; continues over E Mongolia and China, including Manchuria, to Japan, Korea, Philippines and New Guinea; probably overflies New Guinea during N migration. Juveniles on passage also occur regularly down Pacific coast and even into Alaska. Arrival in Australia Aug- Nov, and 25,000 birds arrived in single night mid-Sept 1984; birds leave S Australia early, mid-Feb to early Mar, undertaking rather prolonged N migration to breeding grounds, with series of short flights. Movements within Australia seem to be dispersive, with birds leaving when wetlands dry. Most of population migrates to Australia, mainly SE; few 1 st-year birds spend N summer in winter quarters.   (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).