I noticed a recent change in my Silkie Roo pepper. He has developed these bumps and scab like abrasions on this walnut comb. This roo has a tendency to sit right in the doorway face outside of the coup almost like he is blocking the entrance on purpose and i have a feeling mosquito's are giving him some hefty bites before i come out to lock up the coop at night. Is there anything i can do to help the healing or keep the mosquito population down? here is a close up: I hope its nothing series. non of my hens are showing any injuries but they are smart and stay in the coop.