I've recently got 2 silkie pullets, had them for about 4 days, and today we've bought 2 more younger ones, about a month younger than the other 2, I didn't know you where supposed to keep them separate and put them in the run straight away today, everything seemed fine, but when the larger silkie goes near the new smaller ones she was pecking and attacking them. And tonight she stood at the door of the coop not letting them in at night, one of them got to the top but she stood at the entrance and pecked at it, weve put them in a separate smaller coop, will they be able to go in the same coop at some point? and when will the bullying stop?