The fauna of the area extends over the river environment, with several mollusks of fresh water, otters and trouts. In the mountains, there are wild boars, foxes, wolves, hares, rabbits, hedgehogs, lizards and deers. More than 150 species of vertebrates have been classified.
Birds deserve an extra chapter. Around the dam, there are hundreds of recorded species. Winter is a good time to observe waterfowls, while spring is perfect for birdwatchers. We can see black kites (Milvus migrans), booted eagles (Hieraaetus pennatus), peregrine falcons (Falco peregrinus), toed eagles (Circaetus gallicus), marsh harriers, honey buzzards, swallows (Hirundo daurica) bullfinches (Pyrrhula pyrrhula), shrikes (Lanius collurio), quails, partridges and other songbirds.
Here you can also hear the beautiful singing of the nightingale (Luscinia megarhynchos), which, in early spring, sings to attract its mate (If you hear it May onwards, then it means that the bird is still single)
Hopefully, in winter, we can observe the unmistakable wingspread of the heron (Ardea cinerea)