Supplementary feeding of game animals like Red and Roe deer in autumn and winter is a traditional method in the Austrian hunting system. In mountainous regions the feeding period lasts for 6 month and is very expensive. The forest company “Wittgenstein” in a mountainous region of Lower Austria has decided to stop feeding roe deer during winter. This diploma thesis analyses the changes in feeding habits, activity range and hunting of Roe deer after terminating feeding. The investigation took place in two different areas (Trauch, Tiefental) by counting droppings, mapping deer passes, analysis of the hunting bags and the analysis of the paunch contents of 10 roe deer. During the feeding period there was an intensive concentration of Roe deer in the area close to the feeding stations. After stopping to supply food to Roe deer in winter 2003/ 04, the animals changed their activity ranges. Some regions with little concentration of Roe deer could still be found in the area Trauch. On these points it was easier to find some fodder during the winter time. In the area Tiefental Roe deer occupied the whole investigation area. The Red deer influence on Roe deer can be discerned by local distribution, although the investigation areas are quite different. In Trauch the Red deer influence is quite intense. Accordingly, Roe deer withdraw from its retreat areas. In Tiefental, where the Red deer influence is less, the Roe deer gets by with beech tree fruits during the winter period, although there is no additional food provided. Since the additional feeding during the winter period has been stopped in 2003/ 04, there has been enough time to draw conclusions regarding the Roe deer itself and its damage to the forest. Due to the harsh general living conditions regarding (nutrition and climatic situation), roe deer retreat from the investigation areas after a time. As a consequence hunting Roe deer is not of economic interest any more. In conclusion, stopping the additional feeding during the winter period is possible in both investigation areas. Additional feeding only makes sense if Roe deer is planned to be established as a main game animal.