I adopted a GCC and she will be 2 on February 21st. First couple of days she was a sweetheart. And then all of a sudden she had decided to start biting to the point of drawing blood! Once she is on the shoulder she will bite very hard once if I need to take her off my shoulder. I will open cage and leave room and she will fly through house until she finds me. Previous owner got her from a breeder and gave her toe along with all of her cage and accessories. Her cage is a kings cage with a playground on top. She will rub her head on me when on my shoulder and preen my hair and kind of flick her wings a little. But sometimes she will come down and bite my feet if I'm in my recli er or go after my fingers. I can get her off my shoulder with a stick but sometimes she will go after my hand holding the stick. Please help, maybe that's why she was rehomed?