Integrating chicks part 2

So I’m integrating my chicks into my existing flock. It’s been going alright. Unfortunately the last few days the weather has been awful so they’ve had to live in the dog kennel inside the coop. I do let them out for about an hour and the big chickens will come in and eat with them, or peck them lol.

Now, my big chickens are actually somewhat kind. My issue is I have ONE really mean chicken. She chases the chicks, and pulls at their head feathers. In order for me to integrate should I put the mean chicken in a kennel, and let the little ones have more freedom? I’m not so much worried about them with the other chickens. It’s just this one that is nasty. My chicken savvy friend said to just leave them be and it’ll sort out. It seems more than pecking order though, more so cornering the chicks and bullying.

Photo of my constantly broody girl that LOVES having the chicks around.