Native to:
Afghanistan,
Albania,
Aldabra,
Algeria,
Andaman Is.,
Angola,
Assam,
Baleares,
Bangladesh,
Benin,
Bismarck Archipelago,
Borneo,
Botswana,
Burkina,
Burundi,
Cambodia,
Cameroon,
Cape Provinces,
Caprivi Strip,
Caroline Is.,
Central African Repu,
Chad,
China South-Central,
China Southeast,
Comoros,
Congo,
Cook Is.,
Corse,
Cyprus,
Djibouti,
East Aegean Is.,
East Himalaya,
Egypt,
Eritrea,
Ethiopia,
Fiji,
France,
Gabon,
Gambia,
Ghana,
Greece,
Guinea,
Guinea-Bissau,
Gulf of Guinea Is.,
Gulf States,
Hainan,
Hawaii,
India,
Iran,
Iraq,
Italy,
Ivory Coast,
Jawa,
Kazakhstan,
Kenya,
Kirgizstan,
Kriti,
Krym,
Kuwait,
KwaZulu-Natal,
Laos,
Lebanon-Syria,
Lesser Sunda Is.,
Liberia,
Libya,
Madagascar,
Malawi,
Malaya,
Mali,
Maluku,
Marianas,
Marshall Is.,
Mauritania,
Mauritius,
Mongolia,
Morocco,
Mozambique,
Myanmar,
Namibia,
Nansei-shoto,
Nauru,
Nepal,
New Caledonia,
New Guinea,
New South Wales,
Nicobar Is.,
Niger,
Nigeria,
Niue,
Norfolk Is.,
North Caucasus,
Northern Provinces,
Northern Territory,
Oman,
Pakistan,
Palestine,
Philippines,
Pitcairn Is.,
Portugal,
Queensland,
Rwanda,
Samoa,
Sardegna,
Saudi Arabia,
Senegal,
Sicilia,
Sierra Leone,
Sinai,
Society Is.,
Socotra,
Solomon Is.,
Somalia,
South Australia,
Spain,
Sri Lanka,
Sudan,
Sulawesi,
Sumatera,
Swaziland,
Tadzhikistan,
Taiwan,
Tanzania,
Thailand,
Tibet,
Togo,
Tonga,
Transcaucasus,
Tuamotu,
Tubuai Is.,
Tunisia,
Turkey,
Turkmenistan,
Uganda,
Uzbekistan,
Vanuatu,
Victoria,
Vietnam,
Wallis-Futuna Is.,
West Himalaya,
Western Australia,
Western Sahara,
Xinjiang,
Yemen,
Yugoslavia,
Zambia,
Zaïre,
Zimbabwe
Introduced into:
Canary Is.,
Trinidad-Tobago