Evidence found
309,893 records across 32 countries and territories, 1874–2026.
Acrocephalus palustris · GBIF taxon key 2493136
Where has the Marsh Warbler been recorded?
Acrocephalus palustris occurrence evidence comes from 309,893 records in 32 countries and territories, from 1874 to 2026. Most records come from Sweden.
- 309,893 records
- 32 places
- 105 years recorded
- Aves class
Observation evidence passport
Source coverage
CC0 GBIF Animalia occurrence facets, including country, month and year summaries.
Refreshed 2026-09-20. Inspect the taxon on GBIF.
What this means
The species has been recorded in the listed places in the stated source universe. Peak month: June.
4 months reach at least 10% of the peak facet count.
What this does not mean
repeated describes the record pattern, not a formal range, residency, abundance or conservation assessment.
A single record remains evidence of a recording, not proof that a population lives there.
Compare this animal’s observation pattern
When it is recorded
JFMAMJJASOND
Peak month: June. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.
Records over time
18742026
Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.
Where Marsh Warbler has been recorded
The countries below show where occurrence evidence exists for Marsh Warbler. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.
| Place | Records | Share |
|---|---|---|
| Sweden | 231,379 | |
| Belgium | 47,231 | |
| Luxembourg | 28,030 | |
| Austria | 2,502 | |
| Germany | 458 | |
| Netherlands | 97 | |
| Russia | 58 | |
| Greece | 20 | |
| Kenya | 18 | |
| Kuwait | 17 | |
| Denmark | 11 | |
| South Africa | 9 | |
| Serbia | 8 | |
| Ethiopia | 6 | |
| Malawi | 6 | |
| Italy | 5 | |
| Poland | 5 | |
| Armenia | 4 | |
| United Kingdom | 4 | |
| Tanzania | 4 | |
| Mozambique | 3 | |
| Czechia | 2 | |
| Estonia | 2 | |
| Finland | 2 | |
| France | 2 | |
| Iran | 2 | |
| MD | 2 | |
| Romania | 2 | |
| Hungary | 1 | |
| Oman | 1 | |
| Türkiye | 1 | |
| Zimbabwe | 1 |
Related animals
Others in the family Acrocephalidae.
Eurasian Reed Warbler
883,447 records
Sedge Warbler
428,527 records
Great Reed Warbler
74,269 records
Blyth's Reed Warbler
34,602 records
Booted Warbler
1,617 records
Eastern Olivaceous Warbler
636 records
Clamorous Reed Warbler
425 records
Sykes's Warbler
126 records
Record pattern: repeated
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.
Repeated records across many years and months. This is inferred from how many years and months the animal appears in, not from a range map — treat it as evidence, not a formal assessment.