The Federsee is surrounded by moorland, partially overgrown with reeds. With a size of 33 km2, the area is one of the largest, groundwater fed, connected moorlands in Southern Germany. Around 265 bird species live in the vicinity of the lake, 107 of which are breeding here.
Among the breeders are Black-necked Grebe and Purple Heron, Great Bittern, Little Bittern and White Stork. Garganey, Gadwall, Water Rail and Spotted Crake and Little Crake are found in the reedbeds.
Raptors breeding in the area include European Honey-buzzard, Red Kite, Black Kite, Marsh Harrier and Eurasian Hobby, and in the surrounding woodlands are Black Woodpecker . Numerous wetland and woodland passerines breed. Waders, waterfowl and Black Tern occur on passage.
Since the lake is completely surrounded by belts of reed and bogs, it is impossible to access the lake directly. There is a small entrance fee (€4) to the reserve. A wooden boardwalk (approx 1.5 km) leads through the reed belt to open water and observation platforms. Guided (boat)tours can be booked at visitor center.