Native to:
Afghanistan,
Algeria,
Andaman Is.,
Angola,
Assam,
Bangladesh,
Benin,
Borneo,
Botswana,
Burkina,
Cambodia,
Cameroon,
Cape Provinces,
Caroline Is.,
Central African Repu,
Chad,
China South-Central,
China Southeast,
Christmas I.,
Comoros,
Congo,
Djibouti,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Fiji,
Gabon,
Ghana,
Guinea,
Guinea-Bissau,
Hainan,
India,
Iran,
Ivory Coast,
Japan,
Jawa,
Kenya,
KwaZulu-Natal,
Laccadive Is.,
Laos,
Lesser Sunda Is.,
Madagascar,
Malaya,
Maldives,
Mali,
Maluku,
Marianas,
Mauritania,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nepal,
New Caledonia,
New Guinea,
New South Wales,
Nicobar Is.,
Nigeria,
Northern Provinces,
Northern Territory,
Oman,
Pakistan,
Palestine,
Philippines,
Queensland,
Samoa,
Saudi Arabia,
Senegal,
Sierra Leone,
Sinai,
Solomon Is.,
Somalia,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Togo,
Uganda,
Vanuatu,
Vietnam,
West Himalaya,
Western Australia,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Cape Verde,
Galápagos,
Hawaii,
Mauritius,
Réunion,
Society Is.