Anguilla, Antigua and Barbuda, Argentina, Bahamas, Barbados, Belize, Bermuda (B), Bolivia, Brazil, Canada (B), Cayman Islands, Colombia, Costa Rica, Cuba, Dominica, Dominican Republic, Ecuador, El Salvador, French Guiana, Guadeloupe, Guatemala, Guyana, Haiti, Honduras, Jamaica (B), Martinique, Mexico, Montserrat, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, St Kitts and Nevis, St Lucia, St Vincent and The Grenadines, Suriname, Trinidad and Tobago, Turks and Caicos Islands, USA (B), Venezuela.
Vagrant to Iceland, Morocco, Portugal, St Pierre and Miquelon (P), Virgin Islands (British), Virgin Islands (U.S.).
Population
Estimated population is 130,000 (2010).
Least Bittern (Ixobrychus exilis) [XC143608]
by Paul Marvin from Orlando Wetlands, Christmas, Orange County, Florida, United States (song)
Least Bittern (Ixobrychus exilis) [XC656437]
by Ron Overholtz from Oceano Campground (near Oceano), San Luis Obispo County, California, United States (song)