Anhinga rufa
Drawn from open occurrence records in and around Okavango Delta, 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, with the widest coverage in May, August and September. 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: 10 squares of 25 km carry records for African Darter in and around Okavango Delta, and the 4,048 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, the Okavango Delta and iSimangaliso Wetland Park are among 17 atlas places where the African Darter is recorded. Its records concentrate in South Africa, Botswana, Namibia, Zambia and Zimbabwe, and the map shows where these records gather. The atlas contains about 109,000 records of the bird from 16 countries.
Of the 62 species with an atlas page recorded in and around Okavango Delta, the African Darter is the 5th most recorded.
The full atlas page, and everywhere else it is recorded