Calidris mauri
Drawn from open occurrence records in and around Pacific Rim National Park 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 April, May, June, July, August, September and October, with the widest coverage in April, May, June, July, August, September and October. 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: 1 square of 25 km carry records for Western Sandpiper in and around Pacific Rim National Park Reserve, and the 4,750 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.
Arenal and Monteverde are the two atlas places where the Western Sandpiper is recorded. Its records concentrate in the United States, Canada, Mexico, Costa Rica, and Panama, and the atlas map follows where they gather. There are about 583,000 open records of this bird from eight countries.
Of the 10 species with an atlas page recorded in and around Pacific Rim National Park Reserve, the Western Sandpiper is the most recorded.
The full atlas page, and everywhere else it is recorded