
Polioptila plumbea
Osa Peninsula, Corcovado and Arenal are among the six atlas places where the Tropical Gnatcatcher is recorded, with records gathering most thickly in Costa Rica, Panama, Colombia, Venezuela and Ecuador. The atlas holds about 140,000 open records of this bird from 15 countries, and the map follows where they concentrate. Because it is recorded in both hemispheres, seasons differ by region and each place page shows the months recorded there.
These are open occurrence records, so they show where people looked for and recorded the Tropical Gnatcatcher 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.