RE: Decatur, Illinois?
I have an uncle who lives there and he does very well.. Not a whole lot of woods where he is but he does pretty good. Find a strip of woods surrounded by corn fields and an ambush style hunt is a good way to go. There is some public ground as noted and there are a lot of deer up by the lake.
Just watch out for the horse and buggy's cuz your in omish country my friend..