So im super new to keeping my own backyard microflock, but I have a grasp on the basics. I'm confused a bit though and maybe yall can help me out. So after my coop/run was built, I got 5 chickens, 4 hens, 1 rooster. They are only 6-7 weeks old (so cockeral/pullets). Then the next couple days, we got 4 hens off craigslist and they are pullets (had them sexed), but older bout 11-13 weeks old. Much bigger but you can tell not full size yet. So the reason for this post is lets put it plain and simply: the 4 older hens are complete a-holes to the younger flock of australorps that I got. When they see them feeding, they mob over to the food bowl and peck them away from it, same with water. Sometimes, they just go out of their way to be bullies and peck on the younger flock for no reason. Today after work I checked the plumage on the little guys to see if they're being "over-abused" by the older flock, and all the australorps are fine, but the 1 silver pencil I got with the young flock of australorps is starting to look tattered a bit, you can tell they're punkin' on him. So I go in there and punk on the older ones and scare them into a corner so the little ones can eat. What I notice if it means anything: The young flock are more submissive, still scared if I make startle movements, but they will come to me and let me pick them up and even pet them. The older flock hates me, and they kinda hiss at me, and squawk like and always run away. And again, a-holes to the younger flock. So heres what I think, and tell me if I'm on the right track: 1. I haven't given it enough time, I integrated the younger ones into the coop, then 2 days later added the 4 older ones, and it's been a total of about a week with chickens. Maybe the little guys are scared and the older ones are just gonna take some getting used to the new flock and coop. 2. They came from different homes. I got the younger flock from a breeder. I got the older ones from craigslist. 3. The older ones got pulled away from their flock rooster, cuz I already had one, and the guy offered me it for free but I refused because I knew one of the younger australorps will be a rooster and I'm shooting for 1:8 ratio, so maybe their angry? 4. Without a rooster to assume alpha position, I'm reading now about alpha hens - perhaps the older ones are trying to establish dominance? 5. If all this is true - and it's just going to take time, will my rooster australorp grow up and pimp smack all the hoes regardless of age?