Marsh Warbler

Acrocephalus palustris

Least Concern · IUCN Red List

LCLeast ConcernInvertebratesShrublandCup nestTiny · 12 g

What the Marsh Warbler sounds like

Sonogram of the Marsh Warbler: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Sonothèque ADVL · Song · Arrondissement of Avranches (near Genêts), Manche, Normandy, France · CC0 · via xeno-canto
Sonogram of the Marsh Warbler: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Sonothèque ADVL · Song · Saint-Jean-le-Thomas, Manche, Normandie, France · CC0 · via xeno-canto
Sonogram of the Marsh Warbler: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Sonothèque ADVL · Song · Lillemer, Ille-et-Vilaine, Bretagne, France · CC0 · via xeno-canto

ID tip

This is a medium-sized warbler. It is very similar in appearance to several other acrocephaline warblers, such as the reed warbler which also occurs in wetlands and has a similar breeding range. The male's distinctive song is useful for identification, as no other member of the genus mimics other birds to any significant extent. The marsh warbler also tends to avoid the stands of pure reed which are the reed warbler's favoured habitat. The sexes are alike in appearance. Hybridisation with both reed warbler and Blyth's reed warbler has been occasionally recorded.

Text from Wikipedia, licensed CC BY-SA 4.0.

When to see the Marsh Warbler

One bar for each month. Filled bars are the 4 months with records; pale bars are months with none. The wide bar is June, the month with the most records.

Where to see the Marsh Warbler

Regular rangeRare visitor

The map shades 69 countries with regular records, and 9 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.

Recorded as a rare visitor in Spain, Portugal, Djibouti, Jersey, Algeria, Egypt, Rwanda, Jordan, Turkmenistan.

About the Marsh Warbler

The marsh warbler is an Old World warbler currently classified in the family Acrocephalidae. It breeds in temperate Europe and the western Palearctic and winters mainly in southeast Africa. It is notable for incorporating striking imitations of a wide variety of other birds into its song.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

Easily confused with

Side by side: Common Reed Warbler vs Marsh Warbler · Marsh Warbler vs Sedge Warbler · Blyth's Reed Warbler vs Marsh Warbler · Great Reed Warbler vs Marsh Warbler · Australian Reed Warbler vs Marsh Warbler

Learn the Marsh Warbler in the BeakBrain App

Photo and call practice. Coming soon to iPhone and Android.

Play today's Daily Bird

Every photo and recording on this page is credited to its author under the licence shown. Spotted a problem with this page, or have a better photo? Contribute.