This morning my sister checked on her little call ducks, only to find that one of them had vanished! She was so upset! The duck seems to have flown off, as there was no sign of a struggle. I guess what I'm getting at is... do domesticated ducks fly south for the winter if their wings aren't clipped? I have several of my own ducks, and would be devastated if any of them flew off! What do I need to do to ensure the safety of my ducks this winter?