Anguilla, Antigua and Barbuda, Argentina, Aruba, Bahamas, Barbados, Belize, Bermuda (B), Bolivia, Brazil, Canada (B), Cayman Islands, Chile, Colombia, Costa Rica, Cuba, Dominica, Dominican Republic, Ecuador, El Salvador, French Guiana, Grenada (B), Guadeloupe, Guatemala, Guyana, Haiti, Honduras, Jamaica (B), Martinique, Mexico, Montserrat, Netherlands Antilles, Nicaragua, Panama, Paraguay, Peru, Puerto Rico (B), St Kitts and Nevis, St Lucia, St Vincent and The Grenadines, Suriname, Trinidad and Tobago, Turks and Caicos Islands, Uruguay (B), USA (B), Venezuela, Virgin Islands (British) (NB), Virgin Islands (U.S.) (NB).
Vagrant to American Samoa, Falkland Islands (Malvinas), Iceland, Portugal, South Africa, South Georgia and the South Sandwich Islands, St Helena, St Pierre and Miquelon (P), United Kingdom.
Population
Estimated population is 390,000 - 1,400,000 (2010).
Snowy Egret (Egretta thula) [XC559898]
by id from Laguna Capit\u00e1n, Hoffnungsau, Teniente Primero Manuel Irala Fern\u00e1ndez, Presidente Hayes, Paraguay (call)
Snowy Egret (Egretta thula) [XC443383]
by JAYRSON ARAUJO DE OLIVEIRA from Santa Rita do Novo Destino, Goi\u00e1s, Ch\u00e1cara Jayrson, Brazil (flight call)
Subspecies
Forms superspecies with Little Egret (Egretta garzetta).
The following 2 subspecies are recognised:
thula (Molina, 1782) - North, Central and South America, from north-eastern USA through Caribbean to north-eastern Argentina, and from north-western Mexico to southern Chile.
brewsteri Thayer & Bangs, 1909 - Western USA, Baja California.