One of our laying hens, after violent disagreements with the rooster, was being picked on by him and, alas, by the other hens to the point that we felt they would kill her. (Chickens can be as clique-ish and brutal as high school girls.)
So we turned her out to see how she'd do, figuring that she could live free for a while at least. Our dogs have ignored her and she's been happily on her own for week now, exploring the garden and beyond. When John goes to feed the other chickens, she runs and waits just outside the coop door for her scratch feed.
She's having a great time pecking around in the garden and the shrubbery. And I like to think that the chickens who were so mean to her are a bit envious.