2 birds are 15 weeks old. 3 birds are a year+. Are the younger ones old enough to put in with the 3 other ones?? They free-range together and the older ones chase the younger ones but everyone seems to be 'safe'. No real aggression taking place. The 2 younger ones know how to skittle. The 3 older ones just went into their new coop - been 3 days in a new big coop and run. I am thinking I will sneak the younger ones in to the coop tonight and place them on the roost below the older 3. Plan? Or wait a bit longer???? THANKS!