I have a original flock of 4 hens and 1 rooster, and I wanted to add a couple more hens so the hen to rooster ratio was better. I purchased two more hens roughly the same age (4-5 months) and same size as my existing ones. For the first week I kept them separated to where they could see each other but not touch. Then after a week, I introduced them to the coop/run. My flock have not accepted them. They are mean to them and won't even allow them out of the coop and into the run for food and water without pecking/chasing them around. So, for the time being I have placed additional feeders/waterers into the coop. Can anyone give me some advice?