They were hunting at the Iroquois National Wildlife Refuge, at a place called the Alabama Swamps.  The refuge is a bit over 10,800 acres, mostly swamp.
   Actually, the star is on a small crossroads town called Alabama..the wildlife refuge is a bit more to the south.
    ... And I-90 cuts through part of it.
  Below, see map location (red star), and a typical photo taken there.