I have two Rhode island reds, two leg horns and a duck. All five I got at the same time in February. I now have two more chicks I got about two months ago and am trying to introduce to the flock. One of my reds and my duck are awful mean to the babies. Once they start in on the babies the others follow suit. It has gotten to the point one of my babies has had it's back pecked clean. They are scared to death to be out with the flock and won't even go in the coop at night so I am still bringing them in at night. Is there anything I can do?