well my chicken started limping about 8 months ago. I checked her feet for bumble foot or anything else but there was nothing. The only thing that was there was that above her ankle. I thought she broke her foot so I bandaged it. But nothing seemed to change and she seemed to get arounb fine. She was also eating and drinking and she was not panting or anything so she seemed in no pain. All that was there was an unusual sore like a cluster of warts. It did not get bigger and none of the others got it so I thought it was like are large callas. Fast forward 8 months after, my mom went out there and noticed the chicken was limping more. She picked her up and noticed right before the body started the leg was only attacked by one feather. Nothing else. There was no blood or anything. The leg was just off. Anyways the chicken gets around fine and looks to be in no pain. What do you think could be the reason for the leg coming off?