Figure S8 : Comparing densities of climate values between the entire species breeding range and the breeding sample sites . Plots on the left-hand side indicate densities along temperature axis (z-scored) and plots on the right-hand side indicate densities along precipitation axis (z-scored). Climate values were extracted for each occupied ecoregion as the mean values across the ecoregion. In red: climate values extracted across the entire breeding range of the species; in blue: climate values extracted for ecoregions where breeding samples are located.