Native to:
Angola,
Argentina Northeast,
Bahamas,
Bismarck Archipelago,
Bolivia,
Borneo,
Botswana,
Brazil North,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
Cambodia,
Caprivi Strip,
China Southeast,
Cuba,
Dominican Republic,
Guyana,
Hainan,
Haiti,
Jawa,
KwaZulu-Natal,
Laos,
Malawi,
Malaya,
Mozambique,
Namibia,
New Guinea,
Northern Provinces,
Northern Territory,
Paraguay,
Philippines,
Sulawesi,
Sumatera,
Swaziland,
Thailand,
Uruguay,
Venezuela,
Vietnam,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Andaman Is.,
Assam,
Bangladesh,
Burkina,
Burundi,
California,
Caroline Is.,
China South-Central,
Comoros,
East Himalaya,
Fiji,
Florida,
French Guiana,
Gabon,
Gambia,
Ghana,
Guinea,
Gulf of Guinea Is.,
Hawaii,
Honduras,
India,
Ivory Coast,
Kenya,
Laccadive Is.,
Leeward Is.,
Lesser Sunda Is.,
Liberia,
Madagascar,
Maldives,
Marianas,
Mexico Southwest,
Myanmar,
Nicobar Is.,
Nigeria,
Pakistan,
Panamá,
Puerto Rico,
Queensland,
Sierra Leone,
Society Is.,
Sri Lanka,
Sudan,
Suriname,
Tanzania,
Togo,
Trinidad-Tobago,
Uganda,
West Himalaya,
Western Australia,
Windward Is.