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

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Long distance migrant. Main wintering areas seem to be located in Argentina and Uruguay. Migrates through Great Plains, Mexico, Central America, across Gulf of Mexico and most of South America E of Andes; some movement across W Atlantic; no evidence of Atlantic crossing during northward migration. Leaves breeding areas late Aug to early Sept, arriving in non-breeding areas late Sept to Oct; return passage starts mid-Feb, birds reaching breeding grounds early Apr to Jun.   (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).