One way to get a non tamed bird out of the cage is to capture her in the dark. What I do when I need to capture my non tame female is wait until dark. Cover the cage. Get a flashlight. Use the flashlight to locate her in the cage, then turn off the flash light then reach in with either a towel or both of my hands and capture her. If you are using your hands be prepared to be bitten. Just in case her with your hands, dont squeeze or hold her tight as this could interfer with her breathing.
Good luck, I know it can be difficult to capture a bird that doesn't want to be captured.