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

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Moves overland on broad front, generally in low concentrations on passage and at stopover sites; many passage records at Saharan oases. N European population probably moves S & SW to wintering grounds. In mild winters some birds stay in S Scandinavia. Southward movements from Jun to early Nov; species present in N and equatorial Africa late Aug to early Apr and in S Africa Oct-Mar; return passage late Feb to mid-May. At least locally very faithful to wintering areas. Few birds remain in wintering areas during breeding season.   (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).