
Poliocrania exsul
Osa Peninsula, Tortuguero, and Corcovado are among the atlas places where the Chestnut-backed Antbird is recorded. Records concentrate most in Costa Rica, Panama, and Colombia, though they also appear in Ecuador and Nicaragua. The atlas holds about 110,000 open records of this bird from six countries, and the map shows where these records concentrate.
Records of this member of the Thamnophilidae family run year-round and span every month of the calendar.
Each bar is the share of its 195 month-dated grid cells with records in that month.
These are open occurrence records, so they show where people looked for and recorded the Chestnut-backed Antbird 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.