Welcome to the Park...be careful of the rodents!
As in Yersinia pestis, the bacteria that caused the Black Death, which wiped out an estimated 2/3 of the human population of Europe in the first half of the 1300's.
Lucky for us, the disease burns through prairie dog towns very quickly. It's worth noting that the ranger did recommend that campers avoid handling dead prairie dogs, ESPECIALLY not if we happen to come across hundreds of dead ones at a time.
No fear of that.
The usual suspects –– red and grey squirrels –– showed up, while Uinta chipmunks, cliff chipmunks, red-tailed chipmunks, and grey-collared chipmunks also frisk about gathering nuts and startling hikers.
Oh, the variations on chipmunks and squirrels –– like the Kaibab squirrel, which has enormous tufty ears and a white tail and can only be found on the North Rim of the Grand Canyon. A fearful, shy creature (every family has its oddball, I guess), the Kaibab squirrel prefers the seeds of the Ponderosa pine over human leftovers. Bless them.
Out West, speaking of names, the common woodchuck or groundhog is known as a whistle pig. These creatures are universally unappreciated, whistle pigs. "They are good for sighting your rifle," was the comment we heard more than once.
Also antelope ground-squirrels, which skitter away with the same flashing white butt as the prong-horns. Only much smaller, of course.
No fear of that on my part, but still.
They will search for food wherever they have the slightest chance of finding it (In a backpack? Yup! In the fruit orchard? Yup! On the sidewalk under your very feet? Yup!).
And they will persist, twitching and chirping, whistling or holding unnaturally still from their various lairs.