Native to:
Aldabra,
Andaman Is.,
Angola,
Assam,
Bangladesh,
Belize,
Benin,
Botswana,
Burkina,
Burundi,
Cabinda,
Cambodia,
Cameroon,
Cape Provinces,
Caprivi Strip,
Central African Repu,
Chad,
China South-Central,
China Southeast,
Colombia,
Comoros,
Congo,
Costa Rica,
Djibouti,
East Himalaya,
Egypt,
El Salvador,
Equatorial Guinea,
Eritrea,
Ethiopia,
Free State,
Gabon,
Ghana,
Guatemala,
Guinea,
Guinea-Bissau,
Gulf States,
Guyana,
Hainan,
Honduras,
India,
Ivory Coast,
Jawa,
Kenya,
KwaZulu-Natal,
Laccadive Is.,
Laos,
Lesser Sunda Is.,
Liberia,
Madagascar,
Malawi,
Malaya,
Maldives,
Mali,
Mauritania,
Mauritius,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Southeast,
Mexico Southwest,
Mozambique,
Myanmar,
Namibia,
Nepal,
New Guinea,
Nicaragua,
Nicobar Is.,
Niger,
Nigeria,
Northern Provinces,
Oman,
Pakistan,
Panamá,
Philippines,
Rwanda,
Saudi Arabia,
Senegal,
Sierra Leone,
Socotra,
Somalia,
Sri Lanka,
Sudan,
Sulawesi,
Swaziland,
Taiwan,
Tanzania,
Thailand,
Togo,
Uganda,
Venezuela,
Vietnam,
West Himalaya,
Western Sahara,
Yemen,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Bahamas,
Brazil South,
Caroline Is.,
Christmas I.,
Cuba,
Dominican Republic,
Fiji,
Florida,
French Guiana,
Haiti,
Hawaii,
Jamaica,
Leeward Is.,
Marianas,
Marquesas,
Marshall Is.,
Nauru,
Netherlands Antilles,
New Caledonia,
Niue,
Puerto Rico,
Rodrigues,
Réunion,
Seychelles,
Society Is.,
Southwest Caribbean,
Trinidad-Tobago,
Vanuatu,
Venezuelan Antilles,
Windward Is.