Fig. 5. Relation between HSI scores and Capercaillie habitat use at the sample plot scale for individual study areas. Regression lines show area-specific results of a logistic regression model with HSI_su and study area as explanatory variables (total N = 2901 sample plots). For illustration, the data were aggregated across five classes of summer habitat suitability (see Table 3 for explanation) and for each study area. Data points are color-coded for the different study areas.