Native to:
Aldabra,
Andaman Is.,
Angola,
Argentina Northeast,
Argentina Northwest,
Assam,
Bahamas,
Bangladesh,
Belize,
Benin,
Bismarck Archipelago,
Bolivia,
Borneo,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Burkina,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Cape Verde,
Caprivi Strip,
Caroline Is.,
Cayman Is.,
Central African Republic,
Chad,
Chile North,
China South-Central,
China Southeast,
Colombia,
Comoros,
Congo,
Costa Rica,
Cuba,
Djibouti,
Dominican Republic,
East Himalaya,
Ecuador,
Egypt,
El Salvador,
Equatorial Guinea,
Eritrea,
Ethiopia,
Florida,
Free State,
French Guiana,
Gabon,
Gambia,
Ghana,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Guyana,
Hainan,
Haiti,
Honduras,
India,
Ivory Coast,
Jamaica,
Jawa,
Kenya,
KwaZulu-Natal,
Laccadive Is.,
Laos,
Leeward Is.,
Lesotho,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Maldives,
Mali,
Maluku,
Marianas,
Marshall Is.,
Mauritania,
Mauritius,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Mozambique,
Myanmar,
Namibia,
Nepal,
New Guinea,
Nicaragua,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Oman,
Pakistan,
Panamá,
Paraguay,
Peru,
Philippines,
Puerto Rico,
Queensland,
Rwanda,
Saudi Arabia,
Senegal,
Sierra Leone,
Socotra,
Solomon Is.,
Somalia,
South China Sea,
Southwest Caribbean,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Suriname,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Togo,
Trinidad-Tobago,
Uganda,
Uruguay,
Vanuatu,
Venezuela,
Venezuelan Antilles,
Vietnam,
West Himalaya,
Western Australia,
Windward Is.,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Aruba,
Bulgaria,
Canary Is.,
Christmas I.,
Cook Is.,
East Aegean Is.,
Fiji,
Gilbert Is.,
Great Britain,
Hawaii,
Illinois,
Inner Mongolia,
Kazakhstan,
Line Is.,
Marquesas,
Mongolia,
Nauru,
Netherlands Antilles,
New Caledonia,
New York,
Niue,
Primorye,
Romania,
Samoa,
Society Is.,
South Australia,
South European Russia,
Tokelau-Manihiki,
Tonga,
Tuamotu,
Ukraine,
Wallis-Futuna Is.,
Xinjiang