Fig. 2. Predicted nest density and 95% CIs (dotted lines) in the Aspen Parkland of Alberta, Canada, in relation to field residual cover (RC) and pasture health score, averaged over both study years and based on the nest density model DEN (proportion of flooded basins + residual cover + pasture score; n = 100 fields). Mean proportion of flooded wetland basins within a study site (PBASIN = 0.2547) was used in the model. The co-variates RC and pasture health score are correlated across all values (Pearson’s product-moment correlation, r = 0.459, P < 0.01), but the correlation is nonsignificant at pasture health score values > 57 (r = 0.190, P = 0.191).