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) [XC46358]
by Oswaldo Cortes from Lagunas del Cielo, Serrania de Acambuco, Tartagal, Salta, Argentina (flight call, wing beats & flight call)
Muscovy Duck (Cairina moschata) [XC117942]
by Arthur Gomes from Resguardo Unificado Selva de Matav\u00e9n, Cumaribo, Vichada, Colombia (mec\u00e1nico)