Aruba, Bahamas, Belize, Canada, Cayman Islands, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica (B), Mexico, Netherlands Antilles, Nicaragua, Panama, Peru, Puerto Rico, Trinidad and Tobago, USA (B), Venezuela.
Vagrant to Barbados, Bermuda, Dominica, French Guiana, Turks and Caicos Islands, Virgin Islands (U.S.).
Baja California east to northern Carolina and south through Mexico, central America and Greater Antilles to Colombia, north-western Venezuela, western Ecuador and extreme north-western Peru.
Population
Estimated population is 150,000 (2010).
American White Ibis (Eudocimus albus) [XC441043]
by Manuel Grosselet from El Casta\u00f1o, Mapastepec, Chiapas, Mexico (call)
American White Ibis (Eudocimus albus) [XC875307]
by Dan Lane from Chomes, Provincia de Puntarenas, Costa Rica (call)
Subspecies
Forms superspecies with Scarlet Ibis (Eudocimus ruber). A recent proposal is that they be merged into a single species on basis of close morphological and ecological similiraties and relatively frequent natural hybridization in zone of overlap in Venezuela. Another view is that they may simply be color morphs.
The following 2 subspecies are recognised:
albus (Linnaeus, 1758) - Southern United States south through Central America and the Greater Antilles to north-western South America.
ramobustorum Patten, 2012 - Northern South America.
BirdLife International Species Factsheet