Argentina, Belize, Bolivia, Brazil, Chile, Colombia, Costa Rica, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Suriname, Trinidad and Tobago, Uruguay (B), USA (B), Venezuela.
Unknown to Puerto Rico.
Tropical America from Mexico south to eastern Peru and northern Uruguay.
 
Population
Estimated population is 50,000 - 499,999 (2010).
Muscovy Duck (Cairina moschata) [XC703741]
by Nunes D\u00b4Acosta from Barba Azul Nature Reserve, Beni, Bolivia (wingbeats)
Muscovy Duck (Cairina moschata) [XC50894]
by Mauricio \u00c1lvarez Rebolledo (Colecci\u00f3n de Sonidos Ambientales - Instituto Humboldt) from Acambuco, Tartagal, Salta, Argentina (call)