
Setophaga tigrina
Arenal is the single atlas place where the Cape May Warbler is recorded, with records gathering most thickly in the United States, Canada, the Bahamas, Cuba and the Cayman Islands. The atlas holds about 369,000 open records of this bird from nine countries, and the map follows where they concentrate.
Records are seasonal, peaking in May, September and October. The thinnest months for records are January, February, March, June, July, November and December.
Each bar is the share of its 200 month-dated grid cells with records in that month.
These are open occurrence records, so they show where people looked for and recorded the Cape May 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.
