We hunt private land in AR. We have 2400 acres of flooded rice to hunt. We mainly hunt from blinds (land just got leveled and we are in the process of putting the pits back in). Last year we got about 5 weeks worth of frozen fields. We couldnt bust enough ice to hunt. In that situation we hunt the dry parts of the farm. Ducks were were in the dry rice by the tens of thousands when everything froze up.
Oh yeah, and don't forget to bring the campstove to cook the bacon, eggs, and fresh duck. A friend of ours has a 15 man pit with a full size gas stove in it. Thats nice because he can cook bisuits too. One of the best duck recipes Ive had was a duck that we just shot, cut the breast out of, and cooked in the pan that we had cooked bacon in earlier that morning. Very good.