I had an interesting experience yesterday. I have two flocks. One flock is older with 9 grown hens. They live in one coop and my smaller, younger flock of 8 chicks ranging from 12 weeks to 6 weeks live in the other coop. Well, I asked my daughter to let the chickens out to free range when she got home from school, assuming she knew that I meant the older birds. Nope. She let them ALL out! All 17 of them were free ranging when I got home that evening. My first thought was, where did all those chickens come from? Then I realized what must have happened and just watched them for a while. Everyone was at peace since they had plenty of room and had been visiting each other through the chicken wire anyway. When I put the big ones to bed, the little ones followed them into the coop, and that's when some of the bigger hens were pecking at the little guys, so I caught them out one by one and put them back in their own coop. My daughter now knows to leave the little guys in their coop because they are really too small to be out unsupervised. They loved it, though, so I'll have to let them out when I can watch them and train them to go back in their coop to get their treats like my big girls do. All in all, it went a lot better than I would have expected!