It depends on the size of the chicks. Mine do not mix til at least 6 months. I keep mine in a shed so if the adults are up top then the chicks are at the bottom and when out side the adults only bother the young ones when they are eating or on the outside perches. For some reason they do not like to be a the large perch with a young one next to them. An older bird is ok but they just seem to peck at the younger ones LOL. Let them in and just watch from a distance. If the hens attack then just remove the younger ones.
