
Calidris pugnax
Lake Nakuru National Park, Namib-Naukluft and Dorob National Park are among 11 atlas places where the Ruff is recorded. Its records concentrate in Norway, the United Kingdom, Belgium, Spain and Israel, with the atlas holding about 290,000 records from 40 countries. Because the map shows where these records cluster, it represents a partial range for the species.
Recorded months differ by region, and each place page in the atlas shows the local timing for this bird.
These are open occurrence records, so they show where people looked for and recorded the Ruff 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.