Haematopus palliatus
Drawn from open occurrence records in and around Paracas National Reserve, 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: 2 squares of 25 km carry records for American Oystercatcher in and around Paracas National Reserve, and the 2,304 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.
Corcovado and the Osa Peninsula are the two atlas parks where the American Oystercatcher is recorded, with records concentrating in the United States, Chile, Peru, Argentina and Uruguay. The atlas holds about 550,000 open records of this bird from 14 countries, and the map shows where these records concentrate.
Of the 5 species with an atlas page recorded in and around Paracas National Reserve, the American Oystercatcher is the 2nd most recorded.
The full atlas page, and everywhere else it is recorded