I have three hens I have raised from one week old (two different breeds). They are five months old and one hen (the feather footed) has started laying. Ever since she started laying the bigger hen will peck her when she tries to eat. Seems like the big hen does not want to let the feather footed eat anything. It seems to be worse when I give them treats like tomatoes. They have never acted like this before and I dont know what to do other than separate them. I live in town so my birds stay in a coop and separating them is a hard thing to do. Any thoughts?