x2! When we introduce our youngsters to the others, we first house them inside a 10x10 dog run that is inside the big run. That way the older ones can see the young ones, but can't get to them. After a while of this, I put treats on both sides (Inside and outside) of one section of the dog run so they are getting treats "face to face". Then I let the little ones out into the big run daily while I am there. Then gradually for longer periods of time. Usually by the time they are about 3 months old, they just kind of become part of the flock and fit right in. With this system, we haven't had any trouble so far, but always have some "small" places where the little ones can get into to get to food, water or just rest where the bigger ones can't fit. Mine are usually introduced each spring, but where yours are all young, the last part might be a bit of a challenge. I hope it goes well for you!