I currently have Two Hens that are 6 months old. I was given two hens that are now almost 4 months old. I have had them for almost a month in a coop next to my other two hens in a separate Coop. They have been able to look at each other the whole time. They have free ranged together. The older hens generally don't pay them any mind. The dominant hen will occasionally chase them around. I tried the other day to put them together and found my new hens huddling in the corner being pecked on by the dominant hen. I am nervous about them getting seriously injured and immediately took them out. Should I just let them tough it out together or try some other techniques??