Hi, I was given a chicken for my birthday in February, and she has complete freedom of the garden. At first she was adorable, but soon became pushy, flying at me and snatching food out of my hands or even flying at my face. She comes marching in the back & front door, desperate to steal food. She now rejects the mixed corn, poultry pellets, & various veggies I feed her, and is solely focused on helping herself to human food like pasties. Sunbathing & barbecues are unpleasant unless she is shut away in her coop. I have several friends with chickens in the garden, and none behave like this one. Am I doing something wrong?