I am babysitting 6 of my friends chickens for a few months while she deals with a fox situation. They are all very healthy, well-kept birds, no parasites, as are my 4. They were all treated with "Flock Protect" and the coop was cleaned out, new sand, shavings and hay and dusted with DE prior to their arrival to be safe. She brought them over last night. I have a 9x3 enclosed run and a hen house that sits over a part of the run. I blocked off 3 feet of the end with chicken wire from ground to ceiling for the new girls. They have a couple of roosting poles and fit fine but it's tight. It was only supposed to be 4 at first but 2 more came out of hiding 2 days after the attack that took the rest of her flock. I put them in while my 4 were out foraging so they came home to house guests. They weren't even phased, just went up to roost for the night so I just figured they were too tired to care. This morning I went out and the new girls were still on their poles, my hens were doing their regular thing. Still, no one seemed to care about each other. I went home at lunch to check on them, look in the temp pen and count 5 on the top bar and...what the...TWO on the bottom bar! I have no idea how but one of my RIR crosses got over there and was hanging out on the bottom bar with the new RIR cross. No one was picking on her, she wasn't afraid or trying to hide, they literally were existing peacefully. While I was trying to get her out, my EE got in the other side and still, no one cared. Is it possible for new hens to just not be aggressive with each other? Maybe because the two flocks are large enough and established enough that they will just maintain their own order in separate families? I am going to wait a couple of days before I let the new girls out to forage to make sure they know where their home is but should I keep them stuck in their 3 foot area or does it sound like it's going to work out ok? I hate having them stuck in such a small area and would much rather just have them enjoy the co-existing they seem to want. My Flock: 2 1/2 year old Easter Egger & Buff Orp and two 1 1/2 year old RIR/BO crosses Her Flock: Polish Buff Lace, 2 RIR/Link crosses, 1 Buff Orp, 1 Ameracauna, 1 RIR Here are the new girls. That pink crate had hay in it for a nesting box but their first order of business was to remove it and use it for a roost.