You could start a little duck farm. Ducks are really easy to keep, if they had a little pond and some place, where they can run. They like a small doghouse with some straw.
You can feed them with corn or other cerial and sometimes a slug from the garden is a banquet for them. Some ducks like to eat sometimes lettuce.
And you will always have a roast for the cold monthes.
The most important thing with ducks is that they have always a cup of water.
P.S.:
Rubystars is right. One duck alone is not happy. They need company! Buy a male and a female duck