Fauna
Sar Mountain is home to a great variety of invertebrates, and 56 species of molluscs and nearly 300 species of false scorpions, spiders and crustaceans have been recorded. So far, a total of 1847 species of insects are known, of which more than 900 species of butterflies, and 160 species of beetles.
5 species of fish have been confirmed in the freshwater habitats, including the Macedonian and Californian trout. In these habitats there are 11 species of amphibians and 17 species of reptiles. This represents 78.5% of amphibian species and 47% of reptile species from the total number of species at the national level.
Among vertebrates, the richest group represented by the largest number of species is that of birds, which are represented by 128 species. Various birds of prey are present, such as: golden eagle, griffon vulture, Egyptian vulture, peregrine falcon, etc. A total of 51 species of mammals are represented, such as brown bear, Eurasian (Balkan) lynx, wild cat, otter, wild boar, chamois, roe deer, wolf, red fox, badger and some species of martens.
