I have no clue whats going on. These birds were bought from someone I am not familiar with and were not quality BCM's. That being said I toured her various coops and they were pretty dang clean. Everyone looked healthy. Lots of ventilation. Lots of free ranging. Yes she did have hundreds of birds but they all looked very good. These are roughly 16 weeks now. Fully feathered. The weather is cold but I do let them out during the day. They are already very large and there is no good way to keep them all confined enough at this point. They have a baby run we use for geese where there is shelter and woodchips and then an outside caged run attatched. They are still on grower food. They do get some ground corn now that its colder. They get cooked eggs roughly once a week. This is a Roo. He is still eating like a big huge pig. Poop is fine. No breathing issues. not acting weak at all. Actually is out there fighting with the others and attacking me when I get between him and food. His comb is almost all black now. I have seen from fighting and frostbite and it doesn't look like that. I also have another little female that just has a couple specs of black on hers. Not wounds. More like the comb is stained black. Nothing raised. I will treat myself if I do figure out what it is. I have had one bird die unexplained recently. No signs of why it died. No black on her. Checked her over well and all we can tell is she sat in her little dug out nest under one of the shelter boxes and died. So there may be more to this that i would like. I need ideas, treatments, and instructions on how to go about those treatments.