Native to:
Afghanistan,
Aldabra,
Algeria,
Assam,
Bangladesh,
Botswana,
Cameroon,
Central African Republic,
Chad,
China North-Central,
China South-Central,
China Southeast,
Egypt,
Ethiopia,
Gambia,
Guinea,
Guinea-Bissau,
Hainan,
India,
Iran,
Iraq,
Japan,
Jawa,
Kazakhstan,
Kenya,
Korea,
Lebanon-Syria,
Lesser Sunda Is.,
Malaya,
Mali,
Maluku,
Manchuria,
Mauritania,
Myanmar,
Nansei-shoto,
Nepal,
New Caledonia,
New Guinea,
North Caucasus,
Northern Provinces,
Northern Territory,
Oman,
Pakistan,
Palestine,
Philippines,
Rwanda,
Senegal,
Socotra,
South China Sea,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Tadzhikistan,
Taiwan,
Tanzania,
Thailand,
Transcaucasus,
Turkey,
Uzbekistan,
Vietnam,
Western Australia,
Yemen,
Zaïre
Introduced into:
Bulgaria,
California,
Greece,
Italy,
Krym,
Romania,
Spain