Ridgely, R. S., T. F. Allnutt, T. Brooks, D. K. McNicol, D. W. Mehlman, B. E. Young, and J. R. Zook. 2005. Digital Distribution Maps of the Birds of the Western Hemisphere, version 2.1. NatureServe, Arlington, Virginia, USA. Additional updates and changes by BirdPhotos.com 2016.
Turks and Caicos Islands,Guyana,Peru,Argentina,Netherlands Antilles,Antigua and Barbuda,Brazil,Ecuador - mainland,Jamaica,Belize,Bahamas,French Guiana,Haiti,Costa Rica,Panama,Uruguay,Puerto Rico,Trinidad and Tobago,Suriname,Guatemala,Honduras,Nicaragua,Mexico,El Salvador,Cuba,Canada,Dominican Republic,Colombia,Venezuela,British Virgin Islands,United States - mainland,
Subspecies
Group
Subspecies
Breeding Range
acuflavidus
coastal w North Atlantic from Virginia to Florida, Gulf of Mexico to s Texas, Campeche Bank (n of Yucatan Pen., ec Mexico), Belize cays and West Indies
eurygnathus
islands off Venezuela and the Guianas, coastal e Brazil, ec and se Argentina
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)
