Let's just say the new girls spend an awful lot of time on this ledge.
Interestingly, Betty, the Easter Egger, is the main aggressor among the older girls. She's the smallest of the adult hens, so maybe she's just reveling in having two smaller ones to boss around. In the pecking order, I actually think Betty comes ahead of Janice, the Cuckoo Marans. Janice is my biggest chicken, but she's also a little slow and dumb, so she gets bossed around more than you'd think. Tina, the oldest, tends to stay out of any scuffles. Betty is smaller than Janice and Tina, but she's tough.
Once Doris and Linda are fully grown, they'll both be bigger than Betty. I wonder how that will change the dynamic between them. Maybe it won't. I just hope the new girls eventually feel comfortable coming down off their ledge.