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

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Migratory. Migration mainly coastal, but sometimes on inland wetlands. On passage, occurs in W Aleutian Is, Kuril Is, Korea, Japan, NE China, Hong Kong and Philippines; some birds cross Mongolia and C China; also some movement across SW Pacific; probably two migration routes in Australia, on either side of New Guinea. Migrates in Jul-Oct and Mar-May. Some birds estimated to be capable of flying non-stop from NW Australia to Philippines or S China. Most departures from N Australia late Mar to late Apr. Most 1st-birds remain S during N summer.   (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).