I used to volunteer for some of those projects and I work with some DNR folks. The plant selection almost always has to do with what was native to that area, for example; Mulberry if not present prior to planting likely would not be on the planting list. I agree with you though, more thought towards wildlife could be given in some areas. Most KCDNR land cater's to hiker's, bird watcher's, etc., so they tend to plant a lot of larger, aesthetic and berry producing stuff like elderberry, Osier Dogwood, Snowberry, Spruce and Vine Maple. If they really wanted to help out the ungulates, they'd be planting more; Trailing Blackberry, Thimble/Salmon Berry and overseeding with clovers, wild wheat, etc..