I have a Jersey Giant that my daughter didn't realize wasn't in the coop one night last week when she locked the chickens up for the night. The temps went down around 17 degrees that night and the poor guy just kept banging his body into the coop all night and gave himself a pretty good head injjury. We thought at first a predator had tried to get him but realized later that he did it to himself. He is seemingly fine now other that some black on the tips of his comb. I have been watching him to see if it dimished thinking it may have been dried blood but at this point don't think it is. It is just the tips but am not sure if I need to get him decombed because of this. We only have one other gimpy rooster that really is more pet than protector of the flock so I really don't want to have to put this guy down. If I do have to have his comb removed does a vet do this? If I leave the little bit that I think is frostbite will it spread or cause health issues? Thanks for any help!!!