Beavers were reintroduced to this region in 1983.
In the beginning there were only few beavers (four adult beavers and three young beavers), however soon they began to reproduce.
Now in the Bolimowski Landscape Park live thirty beaver families.
Beavers make lodges in precipices of the Rawka River and it's tributaries.
Acitvity of these mammals (chopped and beavers-bitten trees) can be seen all around the Bolimowski Landscape Park.