Uinta Ground Squirrels on Lookout Duty, Yellowstone
Focal Length: 700 mm
Shutter Speed: 1/500
These Uinta Ground Squirrels were on lookout duty for a short-tailed weasel that set up his den among a colony of Uinta Ground Squirrels in Yellowstone National Park. Later on, the weasel did show up. See my blog post for more photos and a narrative of the story.