No reason not to use them.
How does the Gadwall taste compared to Mallard?
How do you cook them? Bake, roast, etc. Where did you go to find enough water for ducks? The Saudis, will take plastic sheeting, and lay it out on the sand, where there is a flight path for migrating ducks, and when the ducks see the plastic, it looks like water, and they come in to investigate. Especially when there is a few decoys on it. Hey did you ever take the Turkey video to school? If so how did the Kids like it?
Wayne