LoL ducks seem to do what ducks want when they want, but with some training they catch on and learn the routine. Oh also look for items like red wheat and other whole grains. You can grow pans of rye grass during the winter too for them to snack on. Rye seed is cheap and easy to grow on large shallow pans like underfed plastic boxes.
i will see about the rye when it turns chilly.
but as long as the geese will eat hay they will also get that in the winter.
the ducks LOVE it, well ok they LOVE the leaves and seeds.