Do you free range your turkeys? If so do you other wild turkeys by your turkey? I had a tom turkey that was free ranged, and we had wild turkeys coming over and really bullying him. He was a GIANT turkey and for some reason couldn't really defend himself. One day he had gotten picked on SO badly, we had to shoot him. He wasn't going to make it. He had lost all of his feathers, had broken legs, and internal bleeding in one of the legs. It was a very sad day
Hope nothing this is happening to your turkey!! :(
Best of luck!