The rosy-billed pochard, alternatively named rosybill, or rosybill pochard (Netta peposaca) is a duck with a distinctive red bill on males and a slate-colored bill on females. Though classified as a diving duck, this pochard feeds more like a dabbling duck.
The species name peposaca is derived from a Guaraní word for "showy wings", referring to the broad white stripe that is only visible with stretched out wings.
The rosy-billed pochard is endemic to South America. It is found in Argentina, central Chile, Paraguay, Uruguay and southern Brazil. The population in southern Argentina migrates northward during the austral winter, reaching Brazil and southern Bolivia. It is a vagrant to the Falkland Islands.
- BirdLife International (2012). "Netta peposaca". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013.
- Netta is Ancient Greek for a duck. peposaca is a transcription of the Guaraní name of this species which means "showy wings": Netta species have a bright white stripe on their remiges which becomes visible in flight.
- Wildlife Information: Netta peposaca
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