Native to:
Angola,
Bangladesh,
Benin,
Borneo,
Botswana,
Burkina,
Burundi,
Cambodia,
Cameroon,
Caprivi Strip,
Central African Repu,
Chad,
China North-Central,
China South-Central,
China Southeast,
Congo,
East Himalaya,
Eritrea,
Ethiopia,
Free State,
Gabon,
Gambia,
Ghana,
Guinea,
Hainan,
India,
Ivory Coast,
Jawa,
Kenya,
KwaZulu-Natal,
Laos,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Maluku,
Mauritania,
Mozambique,
Myanmar,
Namibia,
Nepal,
New Guinea,
New South Wales,
Nigeria,
Northern Provinces,
Northern Territory,
Pakistan,
Philippines,
Queensland,
Rwanda,
Senegal,
Seychelles,
Sierra Leone,
Somalia,
South Australia,
South China Sea,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Togo,
Uganda,
Vietnam,
West Himalaya,
Western Australia,
Zambia,
Zaïre,
Zimbabwe
Extinct in:
Réunion
Introduced into:
Guinea-Bissau