Figure S9 : Comparing densities of climate values between the entire species wintering range and the wintering 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 wintering range of the species; in blue: climate values extracted for ecoregions where wintering samples are located.