Lost Blue Bellied Lorikeet in Willoughby

My 10 week old baby was outside in her cage with her dotting parents and suddenly decided to fledge & fly off on her first flight. She is a blue bellied variation of a rainbow lorikeet (blue head & small blue belly patch & otherwise olive green). Her parents are severely abused rescues, baby has been helping their healing and family were thriving, but are now devastated, both parents crying & distraught since losing her. Please help!