coastal Arctic to subtropical North Pacific Ocean, from ne Siberia to n Japan (w North Pacific) and Aleutian Is. to n Baja California (e North Pacific)
Nonbreeding Range Subregions
s to Korean Pen. and ec China (w North Pacific); to w Baja California (nw Mexico; e North Pacific)
Japan,North Korea,China,Mexico,South Korea,Canada,Russia,United States - Alaska,United States - mainland,
Subspecies
Group
Subspecies
Breeding Range
pelagicus
Siberia from Chukotka, Kamchatka, Sea of Okhotsk, Kuril Is., and Commander Is. (e Russia), Hokkaido and n Honshu (n Japan) and islets of Liaoning (ne China); Aleutian Is., s Alaska to sw Canada
resplendens
e North Pacific coast from sw Canada to n Baja California (nw Mexico)
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)
