Anguilla,Antigua and Barbuda,Bahamas,Belize,Brazil,British Virgin Islands,Canada,Colombia,Costa Rica,Cuba, Dominican Republic,Ecuador - Galapagos Islands,Ecuador - mainland,El Salvador,Guatemala,Guyana,Haiti,Honduras,Jamaica,Mexico, Montserrat,Netherlands Antilles,Nicaragua,Panama,Peru,Puerto Rico,Saint Kitts and Nevis,Suriname,Trinidad and Tobago,Turks and Caicos Islands, United States - mainland,Venezuela,Virgin Islands,
IOC 13.1 Subspecies
Group
Subspecies
Breeding Range
californicus
e North Pacific coasts from s California to c Baja California and Gulf of California to wc Mexico
carolinensis
w North Atlantic coasts from Maryland (e USA) to Florida, Gulf of Mexico, and coasts of Yucatan Pen. to Panama
murphyi
coastal islands off w Colombia and Ecuador
occidentalis
coastal West Indies, Swan Is. (far e of Belize), San Andrés and Providencia (far e of Nicaragua) and islands off Caribbean n South America
Africa (entire continent rather than south of Sahara)
AN
Antarctica
AO
Atlantic Ocean
AU
Australasia (Wallacea (Indonesian islands east of Wallace's line), New Guinea and its islands, Australia, New Zealand and its subantarctic islands, the Solomons, New Caledonia, and Vanuatu)
PAL
Eurasia (Europe, Asia from the Middle East through central Asia north of the Himalayas, Siberia and northern China to Japan)
IO
Indian Ocean
LA
Latin America (Middle and South America)
MA
Middle America (Mexico through Panama)
NA
North America (includes the Caribbean)
NO
Northern oceans
OR
Oriental Region (South Asia from Pakistan to Taiwan, plus Southeast Asia, the Philippines, and Greater Sundas)