Parkesia motacilla
Drawn from open occurrence records in and around Shenandoah 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 February, March, April, May, June, July and August, with the widest coverage in March, April, May, June, July and August. 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 Louisiana Waterthrush in and around Shenandoah National Park, and the 6,033 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 parks where the Louisiana Waterthrush is recorded, and its records concentrate most in the United States, Belize, Costa Rica, Guatemala and Canada. The atlas holds about 260,000 open records of this bird from seven countries. Because the map shows where these records cluster, it represents a partial view of the total range.
Of the 9 species with an atlas page recorded in and around Shenandoah National Park, the Louisiana Waterthrush is the 2nd most recorded.
The full atlas page, and everywhere else it is recorded