I have 5 young ones-4-7 weeks old. They have been in my coop for the past 2 weeks. I have one 6 month old RIR who is out daily to free range for a few hours- she is in a separate part of the coop and can see/interact with the younger ones but they do not inhabit the same part of the coop. When can I let the younger 5 chicks out to forage and spend time in the yard with my RIR? I want to do this right and avoid any problems with these girls. Thank you for any help you can offer.