This park is something of a mecca for bird watchers with almost 150 different bird species recorded in the area.
A wide variety of water birds can usually be found here including: ducks, spoonbills, egrets, herons, ibis, swans, geese, grebes, darters, pelicans, dotterels, plovers, lapwings, crakes, rails, stilts and avocets.
Other species recorded include hawks, harriers, eagles, kites, terns, gulls, sandpipers, stints and other small wading birds.
There are extensive areas of samphire, reed and sedges with large open areas of water. A series of seventeen ponds have been constructed, some of which are flooded to provide habitat for the waterbirds which use the reserve. Additional areas primarily covered with common reed can be found along the edge of Lake Alexandrina up to Tolderol Point.