
Acrocephalus palustris
Kruger National Park, Tsavo West National Park and Tsavo East National Park are the three atlas places where the Marsh Warbler is recorded. Records concentrate most in Sweden, Belgium, Norway, Luxembourg and France. The atlas holds about 192,000 open records from 26 countries, and the map follows where these records concentrate.
Recorded months differ by region, and each place page shows the months for that location.
These are open occurrence records, so they show where people looked for and recorded the Marsh Warbler as much as where it lives. The atlas keeps a species' 200 best-recorded grid cells, so the map shows where records concentrate rather than its whole range. Cells are up to 25 km across, and every location is generalised to its cell.
Generalised encounter areas, not exact locations. Each shape is a grid cell coloured by how likely the species is there.
Conservation status not assessed here yet, so every location is generalised to its grid cell.