From: Population structure and plumage polymorphism: The intraspecific evolutionary relationships of a polymorphic raptor, Buteo jamaicensis harlani
B. jamaicensisspp. (melanistic)
B. j. calurus
B. j. borealis
B. j. harlani
B. jamaicensis spp. (melanistic)
----------
0.004
0.023*
0.012*
0.020*