I believe my girls pushed my little roo outside last night. It was in the 20's. I woke up about 4 in the morning and found him out walking in the yard, I put him up in the coop and shut the door. Today I notice that the top of his comb looks black. Is there anything I should do to treat this. Poor guy. I am goingto need to rehome him. My girls are not so very nice to him.