This wasn't a pretty sight: It seems to be coming from the roosters' combs. See the black spots, especially the one at the tip of one point? (This is Chester, a Partidge Rock) Both roosters have them (an none of the hens do). Harder to see in this pic, but you can see a pink stain on his heck feathers: (This is Rexx, a Delaware) Both roos appear healthy. It has not been (and never is) cold enough here to cause frostbite. They don't fight (26 hens to keep them occupied). Rexx is boss and Chester is fine with that. Are these injuries, or some sort of treatable malady?