I have 4 hens and 1 rooster. Since I got them together, they have all gotten along perfectly. They are all 4 months old! Rooster is only trying to breed with one hen and being super aggressive towards her when not trying to breed. Other hens act as if they are trying to copy him and also being extremely mean to her. When I go to the coop she's always hiding in a corner with her head covered. The rooster won't let her drink water and she won't leave my side when I'm in the coop because of constant fear of all of them. Is this all because of my rooster or is it just a pecking order? I'm just scared for her living in anxiety..