Mniotilta varia
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 April, May, June, July, August, September and October, with the widest coverage in 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: 2 squares of 25 km carry records for Black-and-white Warbler in and around Acadia National Park, and the 12,054 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 Black-and-white Warbler is recorded, with records concentrating most heavily in the United States, Canada, Costa Rica, Belize, and Mexico. The atlas holds about 1.2 million open records of this bird from eight countries. This map tracks where those records cluster rather than the full range of the Mniotilta varia.
Of the 16 species with an atlas page recorded in and around Acadia National Park, the Black-and-white Warbler is the 3rd most recorded.
The full atlas page, and everywhere else it is recorded