Predicted relationships between probability of nest occurrence and six forest habitat variables included in the GIS800 model (originally 28 variables considered) for the Okanagan-East Kootenay Region of the Williamson’s sapsucker Area of Occupancy in British Columbia, 2006–2008.

<p>Variables were calculated from geographic information system (GIS) data within an 800 m radius of the nest or random point. Grey points depict nest occurrence (‘Nest’) or a random point (‘No nest’), and the title of each plot indicates the habitat variable. Solid lines indicate predicted values and thin dashed lines represent the 95% prediction interval. Horizontal line depicts proportion of points that were nests (i.e., the baseline probability of response variable having a value of 1).