Quiscalus mexicanus
Drawn from open occurrence records in and around Joshua Tree 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 January, February, March, April, May, June, July, August, September, October, November and December. 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 Great-tailed Grackle in and around Joshua Tree National Park, and the 3,911 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, Monteverde and Manuel Antonio are among the four atlas places where the Great-tailed Grackle is recorded. Its records concentrate in the United States, Mexico, Costa Rica, Guatemala and Belize. The atlas holds about 2.2 million open records of this bird from ten countries, and the map shows where these records concentrate.
Of the 8 species with an atlas page recorded in and around Joshua Tree National Park, the Great-tailed Grackle is the 3rd most recorded.
The full atlas page, and everywhere else it is recorded