I would love a different breed of chicken, and I was wondering if I put a fertilized egg under my buff orphington when and if she or her sister go brooch will they hatch the eggs? If so will she raise them in the coop along with the other females or will I need to raise them until they get big then re- introduce the chicken when it's. Pullet. I know these must sound like dumb questions to you all, but I'm new to chickens. I have 5 pulleys soon to lay. 2 buff O and 3 asterlorps . we plan ones-doing the coop this fall and making it twice the size it is now.