Afghanistan (NB), Albania (NB), Algeria, Armenia (NB), Austria (NB), Azerbaijan (B) (NB), Bahrain, Bangladesh (NB), Belarus (B) (NB) (P), Belgium (B) (NB), Benin, Bhutan, Bosnia and Herzegovina (NB), Brunei Darussalam, Bulgaria (NB), Cambodia, Chad, China (mainland), Croatia (Local Name: Hrvatska) (NB) (P), Cyprus (NB), Czech Republic (B) (NB) (P), Denmark (B) (NB) (P), Egypt, Eritrea, Estonia (B) (NB) (P), Ethiopia, Faroe Islands, Finland (B) (NB) (P), France (NB) (P), Georgia (B), Germany (B) (NB) (P), Greece (NB) (P), Guam (NB), Hong Kong (China), Hungary (NB) (P), Iceland (B) (NB), India, Indonesia, Iran [Islamic Republic of] (NB), Iraq (NB) (P), Ireland (B) (NB), Israel, Italy (NB) (P), Japan, Jordan (NB) (P), Kazakhstan (B), Kenya, Kuwait, Kyrgyzstan (P), Laos, Latvia (B) (NB), Lebanon, Libyan Arab Jamahiriya, Liechtenstein, Lithuania (B) (NB) (P), Luxembourg (NB), Macedonia [The Former Yugoslav Republic of] (NB), Malaysia, Mali, Malta, Mauritania, Micronesia [Federated States of] (NB), Mongolia (B), Montenegro (NB), Morocco, Myanmar, Nepal, Netherlands Antilles (B) (NB), Niger, Nigeria, North Korea, Northern Mariana Islands (NB), Norway (B) (NB) (P), Oman, Pakistan, Palau (NB), Philippines, Poland (B) (NB) (P), Portugal (NB), Qatar, Romania (NB) (P), Russia (Asian) (B), Russia (Central Asian) (B) (P), Russia (European) (B) (P), Saudi Arabia, Senegal, Serbia (NB), Singapore, Slovakia (Slovak Republic) (NB), Slovenia (NB) (P), South Korea, Spain (B) (NB), Sri Lanka (NB), Sudan, Sweden (B) (NB) (P), Switzerland (NB), Syrian Arab Republic, Taiwan (China), Tajikistan, Tanzania [United Republic of], Thailand, Tunisia (NB), Turkey (B) (NB), Ukraine (B) (NB) (P), United Arab Emirates, United Kingdom (B) (NB), USA (NB), Uzbekistan, Vietnam, Western Sahara, Yemen.
Vagrant to Anguilla, Antigua And Barbuda, Barbados, Bermuda, Burundi, Cameroon, Canada, Congo [The Democratic Republic of the], Djibouti, Dominica, Dominican Republic, Ghana, Greenland, Guadeloupe, Haiti, Marshall Islands, Martinique, Mexico, Montserrat, Papua New Guinea, Puerto Rico, Somalia, St Kitts And Nevis, St Lucia, St Pierre and Miquelon (P), St Vincent and The Grenadines, Svalbard and Jan Mayen Islands, Uganda, Venezuela.
Iceland, northern Europe, northern Asia.
 
Population
Estimated population is 2,800,000 - 3,300,000 (2010).
The Reader's Digest Book of British Birds 1980, 3rd Edition, Drive Publications Ltd ISBN 0 340 25308 8
Birds in Colour Campbell, B., 1960, Penguin Books Ltd
The Pocket Guide to Nest and Eggs Fitter, R.S.R., 1954, Collins
RSPB Handbook of British Birds Holden, P., Cleeves, T., 2002, A & C Black ISBN 0 7136 5713 8
Birds of Britain and Europe Sterry, P., et al., 2001, AA Publishing ISBN 0 7495 3068 5
The Popular Handbook of British Birds Hollom, P.A.D., 1973, H.F. & G. Witherby Ltd ISBN 0 85493 002 7