Can somebody please tell me why after almost a year my one chicken out of 4 has stop laying eggs. She was also being bullied by two of the others. How can I put her back in the pen with the other 3 without them attching her? Even when I let them out of the pen 2 of them still try to chase and attack her. She will run behind me to get away from them. It has been mos since she has laid any eggs. When I took her out of the pen. Her tail was down, her comb was laid over, since she has been a pen by herself attached to the other her tail is up, comb is up. They all sit on the same branch, I stuck it though both pens. All 4 set on,just a fence between her and the other 3. I need help, I have 6 new babies and I dont wont the older ones pecking on them. I hope to have all 10 them in a pen together. Please help me.