After digiscoping more American Bison than you could shake a spotting scope at, we spent most of an afternoon looking for a Pronghorn at a reasonable distance for good digiscoping. One of our participants spotted this one on a little rise of ground above the road, right near a pull-out where the bus could park, and we all piled out with our scopes. The Pronghorn proceeded to amble down the hill toward us, and got as close as the legal limit of 25 yards. Any closer and, according to park rules, we would have had to back up. We had lots of time to take as many digiscoped images as we wanted before it turned and wandered back up the hill.
Despite their superficial similarity (and their other common names) Pronghorns are not antipopes. They are the last members of an otherwise extinct family of North American mammals, more closely related to Giraffes and Okapi, than to deer and old world antelopes. They are generally considered the second fastest land mammals, just behind the cheetah, and could, in theory, out last a cheetah over a mile chase. They are way faster than any existing North American predator.
Digiscoped with an iPhone 7 behind the eyepiece of a ZEISS Harpia 85 at about 1000mm equivalent. Exposure decreased manually to keep detail in the whites. Processed in Polarr.