Albania (B), Armenia (B), Austria (B), Azerbaijan (B), Bahrain (P), Belarus (B), Belgium (B), Bosnia and Herzegovina (B), Botswana, Bulgaria (B), Congo [The Democratic Republic of the], Croatia (Local Name: Hrvatska) (B), Cyprus, Czech Republic (B) (P), Denmark (B) (P), Egypt, Estonia (B), Ethiopia, Finland (B), France (B), Georgia (B), Germany (B), Greece (B) (P), Hungary (B), Iran [Islamic Republic of], Iraq (P), Israel, Italy (B) (P), Kazakhstan (B), Kenya, Kuwait, Latvia (B), Lebanon, Liechtenstein (B), Lithuania (B), Luxembourg (B), Macedonia [The Former Yugoslav Republic of] (B), Malawi, Moldova [Republic of] (B), Montenegro (B), Morocco, Mozambique, Namibia, Netherlands Antilles (B), Norway (B), Oman, Poland (B), Romania (B), Russia (Central Asian) (B), Russia (European) (B), Rwanda, Saudi Arabia, Serbia (B), Slovakia (Slovak Republic) (B), Slovenia (B), Somalia, South Africa, Spain (B), Sudan, Swaziland, Sweden (B) (P), Switzerland (B), Syrian Arab Republic (B), Tanzania [United Republic of], Tunisia, Turkey (B), Uganda, Ukraine (B), United Arab Emirates, United Kingdom (B), Yemen, Zambia, Zimbabwe.
Vagrant to Algeria, Faroe Islands, Jordan, Malta, Nigeria, Portugal, Qatar.
Breeds from England (local), southern Scandinavia, Belgium, eastern France and northern Italy east to northern Kazakhstan, south to northern Balkans, eastern Turkey and north-western Iran. Non-breeding south-eastern Africa.
 
Population
Estimated population is 10,000,000 - 30,000,000 (2010).
Marsh Warbler (Acrocephalus palustris) [XC791220]
by Marcin Urba\u0144ski from Gmina Podegrodzie (near Podegrodzie), nowos\u0105decki, Lesser Poland Voivodeship, Poland (song)
Marsh Warbler (Acrocephalus palustris) [XC810089]
by Yngve Hareland from Ekebydalen v\u00e4stra dammen utloppsdiket, Ukraine (song)
Nest
An untidy collection of plant fibers, woven to plant stems.
Eggs (Guide)
4 - 5; very pale blue or green, boldly spotted with olive-green and grey.
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