Uinta Ground Squirrel, Yellowstone National Park, WyomingMeet the potgut. At least that’s what you’d call this guy if you lived in northern Utah. Elsewhere he’s known as the chisler. But officially, he’s called the Uinta ground squirrel. We made our acquaintance in Yellowstone National Park years ago when I was on a wolf-searching mission. And that’s the great thing about wildlife photography. You may not find the species you were looking for, but it’s about all those others you find along the way. Nikon D300 with Nikkor 200-400mm lens (at 400mm) ISO 400, f/4 at 1/640th of a second.