The biosphere reservation by the village of Srebarna is situated at a distance of 2 km south from the river Danube and 16 km west from Silistra, on an area of 600 ha. It covers the lake Srebarna and the territories near it. Its fame is related on one hand to the fact that it is situated exactly on the way of the migratory birds from Europe to Africa – Via Pontica, and on the other hand to the unique and diverse species of water birds in it.
In 1942 the lake was declared a breeding farm for water birds, and in 1948 it obtained the statute of a bird reservation. Some of the most interesting species which inhabit the lake are Pelecanus crispus, Anser erythropus, Anatidae, Panurus biarmicus, Ardea alba, Cygnus olor, Phalacrocorax pygmeus, etc.