
Calidris alba
West Coast National Park is the atlas place where the Sanderling is recorded, with records gathering most thickly in the United States, Canada, Portugal, the United Kingdom, and Norway. The atlas holds about 997,000 open records of this bird across 14 countries. Because the map follows where these records concentrate, it represents a partial view of the bird's full range.
The months in which the Sanderling is recorded differ by region, and each place page shows the timing for that location.
These are open occurrence records, so they show where people looked for and recorded the Sanderling 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.