Apart from various birds living in tree-holes, frequent inhabitants of chestnut forests are squirrels (Sciurus vulgaris) and the dormouse (Myoxus glis). Here we can also encounter various species of game, such as the wild boar (Sus scrofa) and the roe deer (Capreolus capreolus), and recently also the bear (Ursus arctos).

Among small mammals, particularly important are the endemic karst dormouse (Eliomys quercinus dalmaticus), the snow vole (Chionomys nivalis), the Mediterranean water shrew (Neomys anomalus) and 18 species of bat. Among these, particularly interesting are the common bent-wing bat (Miniopterus schreibersi), the Kolombatović lump-nosed bat and the Alpine long-eared bat (Plecotuskolombatovici and Plecotus macrobullaris), and the Bechstein’s bat (Myotis bechsteini).Rocky cliffs are attractive not only to birds, but also to the chamois (Rupicapra rupicapra).