Native to:
Andaman Is.,
Angola,
Assam,
Bangladesh,
Benin,
Bismarck Archipelago,
Borneo,
Botswana,
Burkina,
Burundi,
Cabinda,
Cambodia,
Cameroon,
Cape Provinces,
Caprivi Strip,
Caroline Is.,
Central African Republic,
Chad,
China South-Central,
China Southeast,
Christmas I.,
Comoros,
Congo,
DR Congo,
East Himalaya,
Equatorial Guinea,
Eswatini,
Ethiopia,
Fiji,
Gabon,
Gambia,
Ghana,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Hainan,
Hawaii,
India,
Ivory Coast,
Japan,
Jawa,
Kenya,
KwaZulu-Natal,
Laos,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Mali,
Maluku,
Mauritius,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New Caledonia,
New Guinea,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Northern Territory,
Pakistan,
Philippines,
Qinghai,
Queensland,
Rwanda,
Réunion,
Samoa,
Senegal,
Sierra Leone,
Solomon Is.,
Somalia,
Sri Lanka,
Sudan-South Sudan,
Sulawesi,
Sumatera,
Taiwan,
Tanzania,
Thailand,
Tibet,
Togo,
Uganda,
Vanuatu,
Vietnam,
Wallis-Futuna Is.,
West Himalaya,
Western Australia,
Zambia,
Zimbabwe
Introduced into:
Marianas,
Society Is.,
Trinidad-Tobago