well today after work I decided to put my single pullet in with the big girls....they were fine with her at first until she wanted to be friends and then came the pecking, pecking and more pecking... I set up a few places for her to run and hide under and she used them very well... She is a bold little chickie pecking right back at some of the girls. After a few hours the pecking had subsided and she was holding her own. I was very surprised with my very mean rooster.. he paid her no mind at all.. even protected her a few times. I put her back in her cage for the night.. to let her rest up a bit for tomorrow.. I am going to leave her out there all day with the big girls....and maybe even let her sleep with them on the roost. But I have to admit working out the pecking order is really hard to watch!!! I am sure they will all be fine in the end!!! and she seems to be happy with her own kind.. even if they do peck her on the head once and a while!!