Native to:
Andaman Is.,
Angola,
Assam,
Bangladesh,
Benin,
Borneo,
Botswana,
Burkina,
Burundi,
Cabinda,
Cambodia,
Cameroon,
Cape Provinces,
Cape Verde,
Caprivi Strip,
Caroline Is.,
Central African Repu,
Chad,
China North-Central,
China South-Central,
China Southeast,
Comoros,
Congo,
East Himalaya,
Equatorial Guinea,
Eritrea,
Ethiopia,
Fiji,
Free State,
Gabon,
Gambia,
Ghana,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
India,
Iran,
Ivory Coast,
Japan,
Jawa,
Kenya,
Korea,
KwaZulu-Natal,
Laos,
Lesotho,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Mali,
Maluku,
Marianas,
Marshall Is.,
Mauritania,
Mauritius,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New Caledonia,
New Guinea,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Ogasawara-shoto,
Pakistan,
Philippines,
Rodrigues,
Rwanda,
Réunion,
Samoa,
Saudi Arabia,
Senegal,
Sierra Leone,
Socotra,
Solomon Is.,
Somalia,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Togo,
Tonga,
Transcaucasus,
Uganda,
Vanuatu,
Vietnam,
Wallis-Futuna Is.,
West Himalaya,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Ascension,
Chagos Archipelago,
Colombia,
Cook Is.,
Florida,
Hawaii,
Marquesas,
New Zealand North,
Niue,
Norfolk Is.,
Oregon,
Seychelles,
Society Is.,
St.Helena,
Tristan da Cunha,
Tubuai Is.