I have read and read about new chicks with the older hens. So, here I am with 4 week+ old babies and 8 week old+ hens & roosters. It is 60 outside. I took the babies outa the brooder box into the house; the big kids are in the run--door closed. I have one of those 'playpen' thingys for my dogs, that I planned to put them(the babies) into, inside the run. But, what IF the babies were hanging out in the house/coop, when the big girls came in? Bad idea? Would there be blood? I can, of course, put the babies back in the box overnight; and do the playpen in the morning. The temps in the desert are gonna drop in four or five days, and I would love to speed up the process of getting the babies out of the box--they are huge! But I dread the stress for everyone! Me included! Thoughts, please?