Our biggest bird in a flock of 3 is also lowest in the pecking order. She was hand raised with lots of love and handling. For the last week or so she bites and bites every time I put my hands near her. I've never done anything rough or mean to her, she has no reason to fear my hands and she has no issue with accepting food from them. She'll also kinda "square up" like she's trying to intimidate me. I thought she had sour crop and took her to the vet and chalked up her biting to not feeling good but the vet said she was fine. It makes me sad that my little lady is aggressive towards me especially when the other two are snugglers. Any advice?