The aim of this study was to find out the habitat suitability index (HSI) and the occurrence of capercaillie in the area, "Forstverwaltung Meran-Rosenkogel?. In total about 450 hectares were mapped. Every 100 meters I was looking for a sample point that was previously determined via satellite map. At this point, with a radius of 30m mapped the terrain and vegetation and searched within 10m, 10 minutes after capercaillie evidence. As a habitat model was used the method of Storch (1999), which was applied in 2004 in the same area. The HSI is calculated separately for summer and winter. Therefor the parameters can be linked together. From the summer and winter-suitability, the year suitability was derived. The entire area was an average aptitude for the mentioned seasons are detected, the HSI-summer is slightly better than the HSI-winter. There was a preference for the following factors: the capercaillies preferential use, the sealevel from 1200 to 1400 meters, matured forest, treeareas with gaps and an canopy covering degree of 60-70% and 60-80% quotient of spruce of the trees, a thinning of trees in the last ten years, conifer rejuvenation, 20% fern covering and 10 to 20% grass covering, near of formicary, as well as a significant preference for medium to high blueberry covering.Already in 2004 in the same area similar studies were carried out. The resulting data were compared with those from 2008. It was due to some inconsistencies in the data sets cannot be compared, the whole area, but only the center-area (241 sample points). In 2004 they found 117 occurrence of capercaillie and in 2008 only 81. HSI-summer has improved slightly, the HSI-winter deteriorated slightly. The HSI-year remains the same.