I have a flock of 9 hens. About 2 weeks ago, my son noticed a small black spot on our 9 month old Buff Orpington's comb. Didn't think too much about it. Today, I let the hens out to free range for a couple hours like I do most days. When I went to herd them all back into their coop/run, I noticed we were missing our Buff Orpington. My son searched and searched for her and finally found her laying in some bushes on the other side of our neighbor's yard. She has never gone that far and she always stays with the flock. Anyway, when I picked her up, I noticed her COMB looked AWFUL! Please see the pictures below. The comb appears to be bleeding. I can see what appears to be dry blood down her beak. PLEASE ANYONE! What could this be and what should I do?