I would encourage you to reach out to your local waterfowl chapters if possible and see if there are funds or fund matches available to build nesting and feeding habitat.
Can you feed corn and grains in the spring and early summer when the birds are returning looking to nest and there's not as much forage with hopes that they nest close by and imprint?
In Minnesota I see a lot of wild rice, sago, wild celery, millet and freshwater shrimp grown/planted as a waterfowl food plot, but what's emphasised by the conservation groups is small potholes with lots of undisturbed cover for nesting with few tall trees for predatory birds.
I'd like to learn more about this as well and find out what the rules are as well as what's effective and what the carrying capacity is for a quantity of birds/acre for local ducks.
Also, remember it can be a lot of work and expense just to have some jackhole with a mud motor cruise in and hunt on top of you (I hear some people are chartering helicopters to drop in out of the sky this year)
