I am having a horrible time integrating my Ameraucana chicks with the older girls. I tried when they were younger keeping them separated with a fence in the run and letting babies sleep in a crate in the coop at night. Older hens somehow got over the fence and pecked babies bloody. So I separated until babies healed. Then I tried the crate in the run and crate inside the coop at night. The babies are 18 weeks old now so they are a pretty good size. We are on day five and they REFUSE to stop picking on the darker, bigger baby. Yesterday we made it until 4 pm and then they pecked her again. This morning I found the smaller shielding the bigger baby. When I moved her, I could see her sister was bloody again. I've also been covering her when something similar to blue kote but it's actually the color of her feathers. It does not help. There are multiple waterers, feed stations, plenty of scratch and veggies, and multiple roosts, plus they can be in the coop or outside on the run. What do I do now? I should also add my older hens are 2 Barred Rocks and 1 Buff Orpington. All raised together.