Give her time, could take a year but if you create a loving calm atmosphere, it will give her the opportunity to trust you. Parrots are very delicate emotionally and become scarred easily. Some of them can come around, others maybe not. Just be gentle and go slow with her.Im quite nervous to do that as she's so timid I fear it'll be impossible to get her back in, and the door on the spare room is not secure
Charlie was able to have this from the get go really as our lounge was nice and secure and bird proof- and he was never timid so after a bit of persuasion he'd always choose to go back in. (Though now he mostly stays in his cage with the door open and just comes out for a lap of the room or to sit on the outside of the cage- he's very chill and loves his cage now.)
We don't want to move her into the same room as she's in quarantine, I wish it were possible
