If I hadn't spent the past two weekends in a row there, I would come and show you some good spots to hunt. Unfortunately, I would seriously be in the dog house if I went a third weekend in a row.
My best suggestion for you, is to go north on hwy. 86 from the Northland Inn.
There is lots of public ground on both sides of the hwy. You can go all the way to the Minnesota state line. From there, work your way east.
Make sure you bring non-toxic shot. The whole county is non-toxic only.
The land is well marked with green public hunting signs.
There is a Canada Goose refuge, which you may hunt ducks and pheasant in, but there is also a Waterfowl Refuge in the Jemmerson Slough complex which is closed to all hunting until the waterfowl season closes, then upland hunting is allowed after that.