Average and median percent overlap of consecutive home and core ranges in January (95% and 50% KHR) of repeat-tracked Thick-billed and Common Murres, compared to a randomized distribution of overlap between individuals.

Similar overlap of year 1 on year 2/year 2 on year 1 indicate no change in range size across years. Similar overlap of 50% and 95% randomized overlap indicate convergence of histograms to 0 (i.e. many random pairs do not overlap at all), regardless of KHR size.