One of our hens , Polly, has started this new behavior. Lately when I come in the yard she runs up to me and pecks at my leg. My husband thinks maybe I have spoiled them with too many treats, and when she sees me she is expecting some scrap delicacy from our dinner salad makings. I can't tell if she is being affectionate or aggressive. Either way it is startling and I would like her to cut it out. Any thoughts on getting her to stop?