Major attraction on the island is a pair of white-tailed eagles. A nesting couple, they settled on the island in 2010, migrating from the marshland of Pančevački Rit, across the Danube. They built a large nest, in diameter, at the height of . There are five other nesting couples in the wider Belgrade area, and some 90 in the entire Serbia, but having them reproducing at only from the downtown of a city of this size is an exceptional rarity. They reproduced for the first time three years later, in 2013. In April 2016, when their chicks were to be hatched, the city's communal services installed a camera in the nest. The project was unique, with the similar one in Estonia, but Belgrade is the only European capital to have it. Before the next generation of chicks hatched in 2017, live feed was posted online. The largest European eagles, with the wingspan up to , are best observed from the neighboring Ušće and Dorćol districts, but they are being spotted circling above the Kalemegdan and the Republic Square, practically the center of Belgrade.