hi.ive got 8 chickens in my back garden,theyve literally got the run of it,ive got 2 copper marans,a splah maran ,a sussex ,dominque,bluebelle,and a speckled star i also have black polish,all ranging from about 14weeks to 21.the thing is theyre all picking on my polish who is the smallest,pecking her,well all apart from the copper marans one whose a male n protects her,i read in a book today that polishes are prone to being picked on n pecked,will this settle,???????????theyve only started doing it the last few days,thanks