I recently got 2 one-year old hens, and I've had 2 four-five months old in a different pen for a couple of weeks. I have 5 original hens that are 5-6 months old, and I have had them since chicks. I tried introducing the 4 new chickens to my flock. The new hens got pecked and fought at a lot from my old flock. Now they just stay in the coop all the time and won't go in the run for food or water. I give them food and water in the coop, but I would rather them go down into the run and get it. But, whenever they try and go down into the run, the old hens will go after them and then they fly right back into the coop. It makes me so sad, and I really want them to get along. Any help appreciated!