The actual distribution of the animal species on Mount Baldo is strongly influenced by the heterogeneity, environmental and temporal features of this mountain. Naturalistic surveys have shown that the majority of animals endemic species of Baldo had Quaternary origin, with more widespread areas cacuminal.
It presents very varied fauna in vertebrates, which includes numerous species included in the Appendices of the Habitats Directive 1992/43 / EEC and the Birds Directive 1979/409 / EEC.
Among the amphibians, the species most characteristic are the yellow-bellied toad (Bombina variegata), the Italian crested newt (Triturus Carnifex), the Italian tree frog (Hyla intermedia) and the Dalmatian frog (Rana dalmatina).
The most important species of snakes are the western whip snake (green whip snake), the common strut (aesculapian snake) and the common viper (Vipera aspis).
A very large number of bird species inhabit the various areas of Mount Baldo. The most interesting are: the black kite (Milvus migrans), the red kite (Milvus milvus), the bearded vulture (Gypaetus barbatus), golden eagle (Aquila chrysaetos), the honey buzzard (Pernis apivorus), the peregrine falcon (Falco peregrinus), the red-footed falcon (Falco vespertinus), the hazel grouse (Bonasa bonasia), the ptarmigan (Lagopus mutus), the black grouse (Tetrao tetrix), the capercaillie (Tetrao urogallus), the rock partridge (Alectoris graeca ), the dotterel (Charadrius morinellus), the pygmy owl (Glaucidium passerinum), the boreal owl (Aegolius funereus), the nightjar (Caprimulgus europaeus), the black woodpecker (Dryocopus martius), etc.
Mammals are represented by several species of bats, but mostly by species that have recently returned to inhabit the Baldo mountain range or that have been successfully reintroduced by man at the end of the last century. The marmot (Marmota marmota), in particular, has been reintroduced by the Province of Verona in 1975, and the chamois (Rupicapra rupicapra) that is repopulating the area since 1987. Today, both these species are widespread on the Baldo massif.
Particularly important are recent sightings of animals, which have not been surveyed for decades, that have returned to Mount Baldo from nearby territories: the deer (Cervus elaphus), the brown bear (Ursus arctos) and the lynx (Lynx lynx).
These last two species, in particular, have a considerable naturalistic value in that their reappearance is a clear signal of man’s increased attention to supporting the integrity of the territory.