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Afghanistan,Albania,Algeria,Angola,Armenia,Australia,Austria,Azerbaijan,Bahrain,Bangladesh, Belarus,Benin,Bosnia and Herzegovina,Botswana,Bulgaria,Burkina Faso,Burundi,Cambodia,Cameroon,Cape Verde, Central African Republic,Chad,China,Congo,Croatia,Cyprus,Czech Republic,Democratic Republic of Congo,Denmark,Djibouti, Egypt,Equatorial Guinea,Eritrea,Estonia,Ethiopia,Finland,France,Gambia,Georgia,Germany, Ghana,Greece,Guinea,Guinea-Bissau,Hong Kong,Hungary,India - mainland,Indonesia,Iran,Iraq, Israel,Italy,Ivory Coast,Japan,Jordan,Kazakhstan,Kenya,Kuwait,Kyrgyzstan,Laos, Latvia,Lebanon,Lesotho,Liberia,Libya,Lithuania,Luxembourg,Macedonia,Madagascar,Malawi, Malaysia,Mali,Malta,Mauritania,Moldova,Mongolia,Montenegro,Morocco,Mozambique,Myanmar, Namibia,Nepal,Netherlands,New Caledonia,Niger,Nigeria,Norway,Oman,Pakistan,Palau, Palestine,Papua New Guinea,Philippines,Poland,Portugal,Romania,Russia,Rwanda,Saudi Arabia,Senegal, Serbia,Sierra Leone,Singapore,Slovakia,Slovenia,Solomon Islands,Somalia,South Africa,South Korea,South Sudan, Spain,Sri Lanka,Sudan,Swaziland,Switzerland,Syria,Taiwan,Tajikistan,Tanzania,Thailand, Togo,Tunisia,Turkey,Turkmenistan,Uganda,Ukraine,United Arab Emirates,United States - mainland,Uzbekistan,Vietnam, Western Sahara,Yemen,Zambia,Zimbabwe,
IOC 13.1 Subspecies
Group
Subspecies
Breeding Range
hybrida
inland n Africa and sw, c Europe to c Asia (Caspian and Amu Darya regions), Kashmir and (erratic) Gangetic Plain to w, c Mongolia, Lake Baikal to Lake Khanka (ec, se Russia) and e China
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)