Pygmy Owl (Glaucidium passerinum) is the smallest owl found in Poland. Its number is about 1000 -1500 pairs. The Pygmy Owl is found in the south, south-west and north-east of the country. Despite its small size, it is a fear among small birds in the forests and forests where it nests, because it can catch prey larger than itself. The Pygmy Owl hunts small passerine birds (tits, finches) and small mammals, such as mice and voles. It is active during the day. It is located in spruce forests, mixed with predominance of old hollow trees. The Pygmy Owl occupies woodpecker holes carved in living or dead trees. Its breeding takes place at the turn of April and May. During the incubation period, the male provides food to the female. The natural enemies of the Pygmy Owl are:Tawny Owl, Sparrow Hawk. This species is under strict species protection and there is a year-round protection zone within a radius of 50 m from the nest. The greatest threat to the habitats of the Pygmy Owl is wasteful forest management, removal of hollow trees, uncontrolled forestry work carried out in the vicinity of hollows during the breeding season, and simplification of the spatial structure of the stand. In Roztocze, there are less and less forest complexes suitable for this species, and the existing ones are shrinking due to the systematic felling of trees.