I have 9 14+ wk old pullets of different breeds. The one EE ("Ameraucana") is the lowest on the pecking order because she never fights back. I just make sure she has access to the food and water and plenty of room to get away from the more aggressive pullets. There are a few of the higher ranking girls that she hangs with, and they have formed a sort of clique, but two of the lower ranking ones still go after her occasionally. As long as there's no blood or serious feather plucking, they are probably best left to work it out themselves.
Are your araucanas purebred with the large cheek feathers poking out? I ask because I have read of Polish getting picked on due to their crests and thought you could be seeing something similar. Is the target the odd facial feathers? You may want to watch for this.
I have noticed that the pecking order can change as they mature. My Buff Orp started being a bully recently, really throwing her weight around, until the New Hampshire (one week younger and lower in rank) got fed up, grabbed the Orp, and relieved her of a few feathers! The Orp quickly reverted to her usual calm demeanor, and order was restored.
Ain't chicken psychology fun?
