I bought extra fencing so I could fence off a space for them in the run, well that was my thought. Then I second guessed myself on the plan.... Im driving myself nuts....
The "space inside the pen" works great. I made a permanent grow-out pen inside my main run and I love it. Because it's in the main run, the adult chickens and the newbies can see each other and get aquatinted. After a couple of weeks I start letting them mingle a little. Of course there's always going to be the pecking order squabbles but I am really happy about how well this worked especially considering that I have LF Cochins and silkies. My older chickens kinda get an "Oh, they're over here now?" attitude and seem pretty disinterested in the younger ones.