Native to:
Andaman Is.,
Angola,
Assam,
Bangladesh,
Benin,
Botswana,
Burkina,
Cambodia,
Cameroon,
Cape Provinces,
Caprivi Strip,
Central African Republic,
Chad,
China South-Central,
China Southeast,
East Himalaya,
Eritrea,
Ethiopia,
Gabon,
Ghana,
Guinea,
Guinea-Bissau,
India,
Ivory Coast,
Jawa,
Kenya,
KwaZulu-Natal,
Laos,
Madagascar,
Malawi,
Malaya,
Mali,
Mozambique,
Myanmar,
Namibia,
Nepal,
Nicobar Is.,
Nigeria,
Pakistan,
Philippines,
Saudi Arabia,
Senegal,
Sierra Leone,
Socotra,
Somalia,
Sri Lanka,
Sudan,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Uganda,
Vietnam,
West Himalaya,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Cuba,
Dominican Republic,
Haiti,
Leeward Is.,
Puerto Rico,
Trinidad-Tobago