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FIRST, consider.. add more feeders.. she can't defend them all. How much space is available to how many birds in total? What you're describing sound *more* like she's being stew pidasso bully of a top hen.. then it does the "drilling a hole in the head attack" mentioned by the other poster...

Since it's not new quarters/digs/coop and only at a different location, I *might* consider a brief (penalty box style) time out for the aggressor. That is to say.. set up with all her needs met inside a wire dog kennel among the flock still for a fair portion of the day, but probably not full on...