Throughout the year, the Forest-park can be visited for its diverse fauna. In winter, in the bare bushes and treetops, you can see various birds, such as the great tit, the blue tit, the long-tailed tit, the woodpecker, the great woodpecker, the little blackbird, the wood thrush, the tawny owl, the wood lark, the jay, etc. In spring, other species appear in greater numbers. Of the insects, the corncrake and the leathery wagtail can often be found on the forest paths, and bumblebees, dragonflies, the protected blue iridescent butterfly and other insects are often encountered.

In spring, migratory birds return to the Forest-park, and with them the wealth of bird song, which is a special experience in this forest area. The second half of June in the Forest-park is marked by the sparkling glow of dense swarms of Midsummer fireflies during the mating season, which is most pronounced at dusk. It is not uncommon to encounter the protected legless lizard, the vine-grower's snail, and sometimes the protected brown toad on forest paths. The Forest-park is also home to a dense population of squirrels, and the much rarer hazel dormouse, whose survival directly depends on the dense undergrowth in which it raises its young and finds all the available food.

The bushes are also responsible for the diversity of the Forest-park's birdlife. Numerous birds nest, overwinter in the bushes, and feed on its fruits: the little nightingale, robin, chaffinch, greenfinch, long-tailed tit, blackbird, black-headed grouse, spotted grouse, yellow-headed kinglet, etc. Thanks to the dense bushes, roe deer often visit the Forest-park.

Huge stag beetles can still be found flying or fighting on the trunks of old trees, precisely thanks to the age of the forest and the degree of preservation of the biocenosis. The black woodpecker is also an indicator of the preservation of the Forest-park's biocenosis because it chooses only old, natural forests as its habitat, and in the Drava Forest-park it is a permanent resident. The only forest pond is an attractive habitat for endangered amphibians and reptiles, including the forest brown frog, brown toad, green toad, white-eared toad, and kingfisher.

More than 120 animal species have been recorded in the Forest-park area, of which more than half are invertebrates (insects predominate), while the other half are vertebrates (birds are the most numerous with over 30 species). The overall diversity of the Forest-park's animal world includes a significantly larger number of species (certainly more than 500 species), which can only be determined by targeted research into the composition of the fauna (especially entomofauna and ornithofauna).

The Drava Forest is also a habitat for species that are on the lists of endangered species in Europe (EU Habitats Directive, EU Birds Directive), or on the list of globally endangered species (IUCN).