Deer in Iowa? Not so much.
Pheasants, quail, and other small game or birds...probably more this winter than ones past because of the ice. Without the ice, not so much different than a "normal" iowa winter.
We really haven't had it that bad besides the ice in December. The snowfall totals have been spread out over several small storms. It's the 12(+)inch snow events that wreck the wildlife.
I think us humans have the whole memory thing going on...and we tend to remember that the past couple of winters have been really mild...AND we tend to become wimps when it gets a little closer to normal after having so many "not-so-normal" winters. The wildlife don't remember like we do, it's just another day in nature to them...another survival curve-ball that most tend to figure out how to hit.