I had 5 guineas raised together for a year- maybe all males-or 1 female. 2 days ago I found 1 dead in the coop. Yesterday I saw a guinea almost kill another guinea so now I know the culprit. I separated the target, but he and the others keep trying to get to each other. They usually free range all day. I don't want to have to keep the one guinea separate, but I don't want him killed either.