Give her eggs to hatch? Works everytime for me
Seriously though, if you have a wire bottomed cage, lock her inside for a few days (with food and water, of course) with no bedding. If she heads back to the nest when you open the door, repeat and extend the time by a day or two. The water dunk would probably work too, but just seems a little rude (IMO). The cage has worked well for me. Good luck.