The cochins were in a cage within the run for 2 weeks. At night they went into a dog carrier and placed in the coop. The coop is 8 x 4. I just was concerned that the Cochins are just too docile and will always be tormented and afraid. The meanest of the bunch of 10 week olds are the GLW and barred rock. Right now I have separated them into 2 runs side by side. I had hoped with them being close in age they would integrate easier.