I have 4 original RIRs about a 2 months after getting them my wife brought home 3 Speckled Sussex. They initially had a big fight but seemed to work it out and I would find all 7 of them in the nesting box area at night. Lately I noticed at least 3 and sometimes all 4 of the RIRs will be on the roosting bar just outside the nesting area (but inside the coop) and one SS will be blocking the entrance at the top of the ramp. I'm assuming they're all comfortable anyways. But maybe the SS are being dominant and taking over? I feel bad the original girls got kicked out of their own home. Any thoughts? Maybe it will pass. The coop is a store bought one. Advertised to hold 8 birds... they used to all sleep in there together but not at all lately. In the AM they all come out and everyone takes turns going in to lay their egg. Any help or info would be appreciated. Thanks!