Icterus spurius
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 April, May, June, July and August, with the widest coverage in 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: 1 square of 25 km carry records for Orchard Oriole in and around Shenandoah National Park, and the 3,441 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 in Costa Rica is the atlas place where the Orchard Oriole is recorded, with records gathering most thickly in the United States, Canada, Mexico, Belize and Guatemala. The atlas holds about 550,000 open records of this bird from eight countries, and its map follows where these records concentrate.
Of the 9 species with an atlas page recorded in and around Shenandoah National Park, the Orchard Oriole is the 3rd most recorded.
The full atlas page, and everywhere else it is recorded