I bought 5 amber links about 6-8 weeks ago. I had 7 hens that are about 2 years old that I was adding the ambers into. I kept them quarantined for just over 4 weeks. I added more perching space and now they have been together for 3 weeks. They don't seem to be fighting anymore that I notice however at night a couple of the original hens are now sleeping in the nesting boxes. I kind of expected the new hens to be bullied into submission. Right now I have 14 foot of roosting space for 12 birds. They typically huddle up pretty good so when I check there is often several feet of open roost space. I am assuming the best thing to do is start blocking the nest boxes off at night? I don't want them in there once the weather turns, they external boxes built off the back of the coop and I am assuming they would be a lot colder at night then being huddled up inside the coop. My original flock is a mix of RIR, golden comets, and barred rocks.