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

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Most coastal populations in Australia appear to be sedentary; irregular movements inland influenced by water conditions. Movements between Australia and S New Guinea recorded frequently. In New Zealand, disperses after breeding. Colonization of New Zealand and records of vagrants on several Pacific islands indicate occurrence of some long distance movements; one immature recovered over 1400 km from breeding site.   (del Hoyo J, Elliott A, Sargatal J (eds), 1992)

• digitised by GROMS, after del Hoyo J A Elliott; J Sargatal (eds) (1992) - 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).