My mom is starting her first flock. She bought a trio of Gold Wyandottes that are about 6 months old and then from another man she bought 1 Barnvelder hen that is about 7 months old. It has been a couple of weeks now that she has integrated them all together, but the Barnvelder seems to run from them and act frightened and they are mean to her. They are not creating any injuries but she runs from them. Anyway, the Rooster is now chasing her and fluffing up his feathers and acting like he is going to fly and attack her. Is he trying to breed with her or is he picking on her? Would it be helpful to try to find another Barnvelder the same age as this one so she isn't all by herself?