I have been quarentining my new hens for about a week and a half. They are in a dog kennel. I have been keeping my orignal hens in their own run tho because they could get there heads thru the new hens pen. I hate having to keep my hens in the run everyday as i usually let them free range. I was wanting to quarentine for at least a month because my new hens have been pulling each others feathers. (they had been doing this before i got them) the new hens seem healthy other than the feather pulling. We have trimmed their beaks, are feeding them lots of protien and have put them on some anti biotics thanks to some suggestions from memebers to this site. My question is if i continue to watch them for about another week and i dont notice any sicknesses in the new hens would it be safe to let my orignal hens out of their run? or is it better to keep them all penned up until the new hens grow back all of their feathers? I want to keep my girls healthy but i want them to get out of their run too. The new hens would still be in the dog kennel but its a chain link one and they can stick their heads out and the others can stick there heads in.