Anguilla, Antigua and Barbuda, Argentina, Aruba, Bahamas, Barbados, Belize, Bolivia, Brazil, Cayman Islands, Colombia, Costa Rica, Cuba, Dominica, Dominican Republic, Ecuador, El Salvador, French Guiana, Guadeloupe, Guatemala, Guyana, Haiti, Honduras, Jamaica (B), Martinique, Mexico, Montserrat, Netherlands Antilles, Nicaragua (B), Panama, Paraguay, Peru, Puerto Rico, St Kitts and Nevis, St Lucia, St Vincent and The Grenadines, Suriname, Trinidad and Tobago, Turks and Caicos Islands, Uruguay (B), USA (B), Venezuela.
Vagrant to Virgin Islands (U.S.).
West Indies and Mexico south to north-western Peru and east of Andes to north-eastern Argentina.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 50,000 - 499,999 (2010).
Masked Duck (Nomonyx dominicus) [XC530421]
by NUNES D'ACOSTA from Setor Samambaia, mata seca, perto da UFG-Agronomia, Goi\u00e2nia-Goi\u00e1s, Brazil (call, song)
Masked Duck (Nomonyx dominicus) [XC50893]
by JAYRSON ARAUJO DE OLIVEIRA from Estancia Guaranina, San Javier, Santa Fe, Argentina (call)