
Setophaga petechia
Arenal is the park where the Yellow Warbler is recorded, with records gathering most thickly in the United States, Canada, Costa Rica, Panama, and Mexico. The atlas holds about 2.2 million records of this bird from eight countries. This map follows where those records concentrate.
Records are seasonal, peaking from April to September and reaching their lowest levels from November to March.
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 Yellow 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.