So last night I was carrying my chicken back to her coop and I noticed she had a kinda fowl oder on her. I set her down and took a look over and when I lifted her left wing I discoverd this huge sore. MUCH MUCH bigger than a silver dollar. Some of it had hardened over but some of it was still pretty fresh. When I gave the skin around it a little pull it speperated from the rest of her (not like peel off, but like I could look down in it and see whats under the skin). I dont know what caused this and I dont know if the wound started at this size if its growing. The wound put me in mind of gangrene. I looked over my other hen and rooster but nothing on them. I didnt put her back in the coop with them last night in case of...whatever could happen Maybe I should mention that with all the rain Ga has been having my yard gets this 10 foot wide river in it which of corse runs right into my chicken coop flooding it a good 6 inches for a few days (I didnt know my yard flooded like this when I put the coop up or I would have not put it there) What should I do??