Tonight I put my 11 week old chicks in with the big girls for the night. I'm so nervous for them. The chicks and big girls have met outside foraging and they seemed OK in the evening when I introduced the little ones to the coop. There was a little pecking but nothing serious. The biggest problem was my roo trying to mount one of the babies! My chicks are about half the size of the full grown girls, bigger than my small banty and about the same as my larger banty. I'm anxiously awaiting first light so I can go check on them! Should be getting light soon, but it's delayed today due to it being very overcast. I'm getting more and more nervous with every passing minute!