I just interduced 5 more chickens to my flock. Now all 5 of the new chickens will not come down from the coop. They get chased and even pecked on if they do. I have a 13x13 cabin with the coop and a 10x10 play area. I can not extend the coop nor can I allow them to free range. I have dogs. Advise on how to help them get along?