There’s a pile of oaks out there no doubt, but the true “white oaks” (Quercus alba) are their own species and the preferred acorn of choice for wildlife. Burr Oak is a different species, and its acorn is less desirable (less palatable and sweet) than both the true white oak and the other more common oak in much of Minnesota and WI, the Northern Red Oak.
Unfortunately, in my neck of the woods, white oak is increasingly difficult to find due to its lumber value. Most people call the burr oak a white oak, but it’s much different looking in terms of bark, acorn, leaf, etc. It’s burred fringe or shaggy edges on the acorn itself are a dead giveaway, and these are a little harder for the deer to deal with. They’ll still eat them no doubt, but Northern Red Oak on our land, draws far more deer; both due to the preference they show over Burr Oak, and because White Oak is so rare.
Joel