I have a 12 x 10 coop. I have eight hens that roost in the coop every night. I have 6 game hens and two roos that choose the trees at night. I would love to have all of them go into the coop at night. I have and can put scratch in the run and catch them all together. they all free range all day and eat treats together, i see a bit of pecking order going on, but nothing serious. i guess the main thing would be that they have not been confined to one area for any length of time. I would think I would need to catch them all in the run and keep them all there until they are used to where they are to roost at night -- i have heard anywhere from a week to three weeks. I guess my main concern is the two roos tend to fight on occasion, the older roo seems more dominate and keeps the younger roo away from the flock. I have come home to a blood bath where they had went at it pretty hard. and then also the pecking order, can it get out of hand?