Green House chicken!!!@Pots I agree with @mustang56 if she only does the neck twisting when she is taken outside and is otherwise fine by herself, then stress would be a factor. You may have to take it in baby steps. Place her near a window so she can see outside. Then open the window, then take her near the door, open the door, etc. Very small changes over a period of time may help her overcome.
She may never overcome the stress of change, so she may remain a house chicken.