Five of my hens were being mean and pecking at the little one, Kydee right from the start. I started giving Kydee extra attention. Let her out first, fed her first or separately, but where they others could see. Kydee gained confidence in this and the others started leaving her alone and one big one took up her cause and watches and protects her, though I have not see the other bother her anymore. I was afraid it might have the opposite effect, but it worked out fine.