Just dropped three 2.5 month old chickens into my established flock of seven 10 month old chickens 4 days ago. Was this a bad idea? How long will it take for them to integrate into the flock? I have separate feed and water stations and they all stay in their own space. My lowest ranking hen will attack them every once in a while but my rooster and the other hens leave them alone. Can chickens that are dropped into a new flock grow up to be calm healthy birds?