So we are planning to move our six lovely ladies to a temporary coop tonight until their coop is finished because they just plain have no room in their brooder anymore... they're 7 weeks old today. Thing is, the pen we're adding them to already has an exsisting bird- we dont know roo or pullet but we're hoping and thinking pullet. This bird is exactly the same age as my birds but was from a different hatch. How will they get along? Should I worry about that bird hurting mine, or mine hurting it? I would feel terrible if ours hurt theirs after they're letting us use their pen. Any specific way I should introduce them in this evening?