White-tailed Prairie Dog

White-tailed Prairie Dog -- Bitter Springs, Interstate 80, WY
Canon EOS Rebel T5i, EF 100-400mm f/4.5-5.6L IS II USM, f/5.6, 1/1600s, ISO: 320

Looks worried, doesn't he?  I'm guessing prairie dogs spend the bulk of their lives fretting about one thing or another.  It can't be an easy life knowing it can end at any moment with a whoosh and strong talons from above.