On the bases of the changes in Polish ecosystems the dynamics in number of some species of game and (big) predators is described. Over the last centuries the area covered by forest was systematically diminishing, from about 90% of the country in the 10th century to only 22% in 1946 and about 29% nowadays. The health condition of the forest also deteriorated, especially over the last forty |years. This situation it improved the feeding conditions for herbivorous species (mainly deer species) and caused the increasing of their number. The author describs the situation of populations of elk (Alces alces), red deer (Cervus elaphus elaphus), roe deer (Capreolus capreolus), fallow deer (Dama dama) and wild boar (Sus scrofa) harvested over the last twenty years. This paper also includes data on situation of such species as capercaillie (Tetrao urogallus), black grouse (Tetrao tetrix) and big predators: brown bear (Ursus arctos) and wolf (Canis Lupus). The landscape has changed. The environmental situation of small game like partridge, pheasant and european hare is in Poland very difficult.
Habitat changes, Population dynamics, Harvest, Elk, Red deer, Roe deer, Fallow deer, Wild boar, European hare, Partridge, Pheasant Brown Bear, Wolf.