Hi, I have 3 girls that are two years old. (A well summer, a Amber star and a goldline) I'm trying to introduce two new girls to them and it's not going well . The new girls are a French grey and a skyline, they are both 20 weeks. I' have them in a separate house and run within the main run. 2 of the old hens are very aggressive towards them and attacked the skyline drawing blood on her legs when I tried to integrate them. They've been able to see but not hurt each other for 3 weeks now, but they still hate the new girls. They pace around the new girls run, stamping their feet and trying to peck them. My question is, will they ever get on?