I have had squashed chicken hens and roosters killed. If they are valuable birds I wouldn't keep them together... although turkeys tend to go where they want if the pen doesn't have a top
I had a couple like that, I was feeding chicken feed. R2ELK gave me that link. I switched to turkey feed. If they ate anything else than turkey feed the dominant one attacked. When the mulberries ripened and he wasn't eating just turkey feed, he attacked. When I invited him to dinner the other...