To answer your duck hunting question, my family "controls" (owned or leased land on both sides) about 5 miles of the Salt Fork river one mile north of the Salt Plain refuge, and I am not even much of a duck hunter.
During muzzleloader season, I saw THOUSANDS of ducks, geese, and sandhill cranes, but my Dad did some hunting this week and didn't see too much. There is too much water this year so finding the duck is tougher than normal.
Here is my son and his dog from last year.