I know that just south of I-70 about 20 miles from the Colorado Border is the "worlds largest prarie dog", I'd be careful hunting near him.. he's like 40 feet tall!
Seriously though western kansas is probably best, northwestern will get you into all kinds of Dogs.
I used to shrink at the idea of shooting the things.. until i realized i was helping to feed the raptors, coyotes and other predators.
So next time someone asks what you are doing.. you can say I'm feeding the raptors (boom)