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

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In India, local movements depending on water conditions, although some migration may occur: 1 bird ringed in Malaysia in Dec 1965 recovered in Manipur (NE India) in Nov 1965; 1 bird ringed in India captured in Maldives. Population of S China migrates S to Malay Peninsula from Oct on, where remains till Apr-May; also winters in Greater Sundas and Philippines. Australian birds essentially sedentary, although sometimes forced by drought conditions to move about. Vagrant to Christmas I (Indian Ocean), Moluccas, Guam (Mariana Is) and NC Japan.   (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).