I've read the link to introducing new chickens and noone has described mixing in chicks this young. I have 5 hens about 1.5yo that are a freeranging flock. They roam my property all day and put themselves back in the coop at dark. I leave the coop door open as that's where food & water are and they have access to their fenced yard but that is largely unused. The chicks have been staying in a separate section of the coop where they can be seen & investigated but the hens don't seem overly interested. I also have a "playpen" for the babies that is outside and they spend weekends there and a couple hours after I get home from work while it's been warm out. Freerangers have investigated them there as well. There's been some looking but no pecking or other aggression when they're in there. This weekend I experimented with leaving the chicks out of the pen while the hens were roaming and there was only a bit of minor chasing when the babies got close but no pecking or other aggression I could see. Chicks have nearly a full set of their first feathers but are still only about 1/5 the size of the hens. Inside the coop I fashioned a door to the chicks' section that is too small for the hens to get through. How long should I wait before leaving this door open and letting the chicks out while I'm at work? Will they be able to find their way back to the coop & their safe place?