Arenaria interpres
Drawn from open occurrence records in and around Acadia National Park, 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 May, June, July, August and September, with the widest coverage in May, June, July, August and September. 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 Ruddy Turnstone in and around Acadia National Park, and the 2,005 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.
West Coast National Park is the atlas place where the Ruddy Turnstone is recorded, with records gathering most thickly in the United States, United Kingdom, Portugal, Canada, and Spain. The atlas holds about 821,000 open records of this bird from 25 countries. Because its map follows where these records concentrate, it shows a partial view of its range.
Of the 16 species with an atlas page recorded in and around Acadia National Park, the Ruddy Turnstone is the 10th most recorded.
The full atlas page, and everywhere else it is recorded