A very large inland freshwater lake, surrounded by mountains and extending into Albania (Albanian site 003) and Greece (Limni Megali Prespa, Greek site 047). The area given is the entire area of the lake.
No data are available for breeding birds. The International Waterfowl Census counts (in the Macedonian sector) in winters 1987 and 1988 recorded (1988 data unless stated) Phalacrocorax carbo sinensis (40), Netta rufina (80; 150 in 1987), Aythya fuligula (8,000) and Fulica atra (5,950). Additional reports of non-breeding birds include Podiceps cristatus (1,300), Pelecanus crispus (58), Anser anser (200) and Mergus merganser (90).