Despite the fact that the territory of Polistovsky Reserve is mostly covered by wetland habitats, and forests occupy a very small area, the fauna is well represented by wild animals. In addition, the Reserve's location at the boundary of the subzone of southern taiga and the zone of mixed coniferous-deciduous forests undoubtedly leaves its mark.
|Animals of a taiga complex of Polistovsky Reserve are originated from Spruce small-leaved forests. They are: Capercaillie, Hazel Grouse, Long-tailed and Grey Owl, Dove, Three-toed Woodpecker and Black Woodpecker, European nutcracker, Goldcrest, Dunnock, Warbler, Redwing, Puhlyak, BullFinch, and some other species. As for mammals, in the Polistovsky Reserve one can meet Hare, Wolf, Fox, Brown Bear, Lynx, Ermine, Elk, Common and Little Shrew, and Squirrel.|
|Also we have a lot of broadleaf forests. To the south of the European forest zone, to mixed and deciduous forests the following species are related: Nuthatch, ChafFinch, Willow Warbler, Bryodema, Green Jeer, Mavis, Black-and Garden Warblers, Tufted Titmouse, and Goldfinch. As might be expected, we have quite few species of complex Far Eastern coniferous-deciduous forests: White Woodpecker, Oriole, Red-breasted Flycatcher and Green Warbler. Among terrestrial vertebrates common are: Wood Mouse, Red Vole, Mole, Hedgehog, Marten, Black Polecat, Wild Boar and Roe. Among amphibians, Grass Frog can be considered common and even numerous.|
|Secondary leaved forests, which occupy a greater area of forest plantations of Polistovsky Reserve and the buffer zone, have a high degree of patchiness; this provides good forage for predators. These areas are inhabited by wolves, foxes, raccoon dogs and ermines. Often one can meet here Black Kite, Buzzard, and Spotted Eagle. As for the passerines, in small-leaved forests of the Polistovsky Reserve one can most often observe Finch, Warbler, Rattle; numerous are Garden Warbler, Chiffchaff, Black-Warbler, Robin Breast, Flycatcher, Great Tit.|
|Primary small-leaved forests - sticky alder forests - are the most interesting in the fauna, and, above all, in the avifauna respect. Researchers note here Green Sandpiper, White-backed woodpecker and marsh tit, as well as water vole, water shrew and American mink. In winter one can observe 20 species of birds, including 6 species of woodpeckers, and 3 types of gallinaceous birds - Grouse, Black Grouse, and Capercaillie. The most numerous inhabitants of the small-leaved forests in the winter are Redpolls. Among tits Willow Tit is dominating. One can also find interesting to meet Gray Woodpecker, Goshawk and the Sparrow Hawk.|
|Spruce forests are inhabited mainly by representatives of the boreal fauna. Since the Reserve area and buffer zone practically have no continuous spruce forests, an admixture of small-leaved and broad-leaved trees sometimes increases the species diversity in this group of forests. In spruce forests one can see Three-toed Woodpecker, Goldcrest, Chanter Timber, BullFinch, Sparrow Hawk, Grouse, Woodcock, Common Cuckoo and many others species. Dominances are: Finch, Robin Breast and Bryodema. Spruce forests mixed with broadleaf trees and an undergrowth of hazel is willingly inhabited by a European subspecies of Kedrovka nutcracker - Orekhovka nutcracker. In spruce-leaved forests Coal Tit can be found.|
|The fauna of forest of islands of Polistovsky Reserve is also interesting. In total, 43 species of birds were met in all mineral islands. Island-nesting species are: Golden Eagle, Hobby Falcon, Merlin, Woodcock, Green Sandpiper, Snipe, Teal, Gadwall, White-backed and Great Spotted Woodpecker, Oriole, Starling, Mountain Ash, Willow Warbler, Bryodema, Wood Horse. Quantitative ratios of species are sometimes not quite typical. This is because of a small area of the massif and mosaic vegetation. As for mammalians, interesting are Red Vole, whose dwelling is found only on some inner-bog islands; Laxmann's Shrew can be found, too.|