I incubated and hatched out 8 babies. I gave 5 to a friend (with more space) and kept 3 to add to my flock. My current hens are about a year old, my newest are 4 weeks and nicely feathering out. I would like to move the chickies in to the hen house as our temperatures are very mild and they seem to be doing well when I let the free range in the garden during the day. I have introduced everyone a few times in the garden. The hens don't seem to mind the chickies at all, but is it to soon to move them into the hen house? I was told the older hens might try and kill them. Thanks!