Today I put our 12 week old Blue Ameracauna and Black Copper Marans Chicks in with our year-old hens. They had seen each other for over a month between our covered run, and the free range run. I was able to supervise all day today as I was in the garden. A little pecking here and there, but nothing significant. So when nightfall came, the chicks wanted to go into the coop, but were afraid. The big girls were already on their roosts. I put them in the coop, and closed the door. I looked later, and a few were in the nesting boxes ! and one, our splash Ameracauna, was on the high roost with the girls!! She was getting pecked a little, but she stayed up there! I opened the chicken door, so they can run out if they so choose. Do you think things will work out? We had the chicks in a pen in our garage, but wanted them to try to integrate before fall...Thanks for your input!