I have 4 hens from one place and 4 from another. They were separated but are now together at night, and they do well during roost time. But I am finding that I need to separate them during feedings because 4 of the hens from one flock will not let the other 4 eat! or drink! They are not so bad that they peck to draw blood or constantly peck peck peck for no reason. They just guard the food and water and will peck and chase the others away! I tried putting food and water at the other end of the coop, but when one of the bullies sees another flock member eating or drinking at the other end, they chase them off and eat in that area instead. :/ Help?