So I'm new to keeping backyard chickens! I started with two from the same flock but lost one to a dog bite and shock! My Ethel seemed very lonely so I decided to get her a/some friends. I ended up getting three hens who were from the same flock. I was initially afraid they would gang up on her, however, she is the dominant one who pics on them. While they are in the run she is fine but when they go in the coop at night it is about a thirty-minute struggle to let them through the door! So my question is... Is this normal, is this "establishing the pecking order," is do I need to do something about it? I let them free range in the evenings and weekends and fear they will be reluctant to come back to the coop.