I had a hen go broody, gave her 4 chicks, she raised them for awhile, now all of a sudden seems to hate them. They are about 6 weeks old. One chick has died from its wounds being pecked. I am thinking of putting the hen in a crate in the run and only letting her out when they free range. Would that help any? I read something about putting "bully" hens in a separate place where they can't see the other chickens. In my case, she would still see everyone. Would that still help?