The faunal heritage of the Orobie bergamasche Park is very extensive and complete: its endemic fauna is undoubtedly noteworthy, in particular hypogeal invertebrates, or rather, populations that live below the surface of the ground, in groundwater, in cavities and in rock fractures.
In this respect, the Park area constitutes one of the most significant places in all of the Central Alps. Consider that in the area of Pizzo della Presolana – Monte Sponda Vaga alone, 37 endemic species have been observed, 9 of which are very localized stenoendemic species, never reported outside of this area. These observations attest to the enormous value of these places, which are indeed internationally acknowledged as true sanctuaries of biodiversity.
To mention some of the species: Cochlostoma canestrinii, a gastropod found only in Presolana; Cychrus cylindricollis, a very rare endemic carabid predator of molluscs; Boldoriella serianensis, the underground carabid found only in very few places in the Bergamo area; Byrrhus focarilei, a stenoendemic beetle that was described only in 1997, Othyorrhincus diottii, a curculionidae discovered even more recently in 2001, with only a few specimens found near the Albani shelter and Polzone Lake; the list continues, in particular with butterflies and other insects. There could be other species living in the Park, still unknown to science.
Moving on to better known wildlife groups, many species populate the Park’s mountains and valleys. In addition to the golden eagle, buzzards, and kestrels, very rare species can be observed, such as the dwarf owl, the boreal owl, the corn crake and the black grouse, the latter being the Park symbol. Of the amphibians, the yellow-bellied toad and the alpine salamander are worthy of mention; particularly noteworthy amongst the reptiles is the viviparous lizard.
There are numerous wild mammals, with marmots, badgers, and ermines; ungulates include the chamois, deer and ibex, the latter being the subject of successful reintroduction activities carried out in the 90s with specimens from the Gran Paradiso National Park, which stabilized the presence of this species.
The brown bear has recently been added to these species; random specimens from the east periodically pass through the Park area confirming its exceptional natural value.