Poliocrania exsul
Drawn from open occurrence records in and around Corcovado, aggregated onto a 25 km grid. A cell is matched by its centre, which can sit up to 16 km outside the boundary, so this covers the surrounding country too.
Occurrence records measure where people looked and found something, which is not the same as where the animal is. This is a relative likelihood, not a probability.
Records exist for January, February, March, April, May, June, July, August, September, October, November and December. A quiet month can mean the animal was absent, or that nobody was looking.
A grid cell is a square of the map, not a sighting: 5 squares of 25 km carry records for Chestnut-backed Antbird in and around Corcovado, and the 12,938 records behind them were collected by other people and published openly. Nothing here counts animals, and a place with more records is not always a place with more animals.
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.
Of the 135 species with an atlas page recorded in and around Corcovado, the Chestnut-backed Antbird is the 4th most recorded.
The full atlas page, and everywhere else it is recorded