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

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Essentially resident, showing some erratic movements, but movements poorly known; more widespread during non-breeding season, making use of temporary pools. Records of apparently non-breeding birds from Nigeria and Cameroon in dry season (Aug-Feb) suggest that long movement s occur, in Ethiopia only present Mar-Apr and Jul-Dec; in E Zaire and Rwanda, numbers increase in Mar; in S Africa, movements complex, seeming to depend on rains.   (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).