Originally posted by ramseybuckeye I've never seen one colored like that, turkeys seem to have so much variation by region.
Some of the feathers are iridescent so the angle of light falling on them makes significant changes in the coloration, but also, regional differences in coloration are very common in both birds and mammals. Some of the differences are just random development of a different color (what evolutionary biologists sometimes call "genetic drift"), and some is selective = slightly different coloration means better survival in one area, but not another. In either case, the differences can eventually be the basis for one species becoming two.