Does anyone know what the black spots on my rooster's comb are? I've attached a photo but you have to blow it up to really see them. Is this what blackhead or bluecomb look like? I first noticed the spots this morning. This rooster free ranges with one hen, who also has the spots though less noticeably. The other birds, who are separate, don't. The two groups are separated in the coop by chicken wire. I'm concerned because I recently lost a hen to hepatitis, probably vibrionic hepatitis. Since then, for the past few days, I've been treating all the birds with terramycin (on a vet's advice). I don't know if this is relevant but yesterday afternoon I locked the two affected birds inside the coop and let the others out, so they were in the coop for several hours when they would normally be ranging. This rooster is a new addition. He started spending the day here a couple of months ago and I've been letting him sleep in the coop for a couple of weeks (he was abandoned). Any ideas what's going on? Disease, injury, dirt?