I recently had to get rid of my rooster because of aggression issues. Now the flock seem to be trying to sort out a new pecking order. One of the Barred Rock hens is starting to be a bully and peck at the others. I think she is trying to "become the boss." In another instance we had a Rhodie in one of the nesting boxes when another Rhodie started to attack her and try to drive her out of the box. I would really like some advise as to whether this is normal behavior or are they acting up because of the loss of the rooster,