The main attraction are the cranes. They arrive in the late fall, migrating from the Northern Europe and are the largest crane population in the Pannonian Plane. Over 20,000 cranes gather on the lake, with additional thousands of other birds, like mallards and geese. Several marine birds, rarely seen far from the sea, nest in the area: Kentish plover, black-winged stilt, pied avocet. In total, 203 bird species have been recorded at Slano Kopovo, which is 63% of all the known species in Vojvodina. Some 80 species nest in the marsh.