I am at my wits end with my chicken! I have 4 hens that are 1 year and 2 months old. I got all 4 of them together at 2 weeks old. I am having serious bullying of 1 hen. It started with the top hen pecking at her. I’ve tried separating, adding toys/things to peck at, pinless peepers, letting the picked on hen free range while the others are in the coop. Nothing has worked, it’s just gotten worse. Now 3 hens chase her, pull feathers, they pecked open a spot on her back. I tried reintroducing after she healed but they chase and jump on top of her. I don’t know what else todo. Currently she is in a dog kennel in the garage. She lays eggs on the hay bale I have in there. I do let her out to free range during the day. I will add that the one getting pick on is also aggressive with us. She will case us. She puffs up her feathers, jumps, and pecks at my boots or legs. She has pecked my daughters arm and drew blood. What should I do with her?????