I need some help with my duck. She is about 6 months old seems healthy in all respects until the last few days. She is very unsteady on her feet like she is weak or her balance is messed up. She is very alert and her demeanor does not seem to have changed but she has a very hard time getting on her feet. She works to get to her feet and will flap her wings like crazy to try to help her maintain her balance and run to the other end of the yard to eat. Any ideas? One thing I just thought of I feed my flock 30% feed as UI am raising turkeys, the ducks go around the yard eating anything they can find but that is the main source of feed.