We recently added one new chicken to our existing one chicken. We separated the coop and outside run giving them two areas divided by fencing to get acquainted with each other. The older hen is not doing well at all and has practically stopped eating. The new hen is a smaller one and is scared to the point we can't get near her. After 10 days, she will come a little closer to get scratch. The older one won't even touch it. The new hen lays eggs regularly, the older one stopped 4 days ago. The new one sleeps in the nesting box, so we blocked it off today and she moved to the floor of the roost. The older hen sleeps on the roosting bar. I am at a loss on what to do. I was hoping to put them together after two weeks, but now I don't know. Any advice??