I was thinking maybe the one with the darker back. The others seem to have their wings cover the back, but one seems to always have a space between the wings.. if you look at the pic of them around the water bowl it would be the turkey on the left. I don't think it has much to do with being a Tom, but its the only diffrence I can see at this point lol. As for the caruncles, they are just starting to get little red bumps on their neck and still have fuzz on the top of their heads. I took out the turkey call to see if I would get a responce, but they just looked at me like I was crazy lol