Dendrocygna viduata
Drawn from open occurrence records in and around Iberá 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: 2 squares of 25 km carry records for White-faced Whistling Duck in and around Iberá Park, and the 1,549 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.
Kruger National Park, iSimangaliso Wetland Park and the Okavango Delta are among 19 atlas places where the White-faced Whistling Duck is recorded. Its records concentrate in South Africa, Argentina, Brazil, Colombia and Zimbabwe. The atlas holds about 122,000 records of the bird from 27 countries, and the map shows where these sightings gather.
Of the 29 species with an atlas page recorded in and around Iberá Park, the White-faced Whistling Duck is the 10th most recorded.
The full atlas page, and everywhere else it is recorded