I have 2 brown leghorns and am looking at getting 2 Araucana , there is an opportunity to buy just one and am feeling a little worried about adding only one new hen. They will be a similar age although this pullet looks smaller than my 2 leghorns. Any advice as to how to add her? I have to win the Auction first, it closes on Sunday. My other hens roost at night in a small coop and are free range for the whole of the day. We are fairly predator free here.