This cute little critter provided me with a great deal of entertainment a couple of weeks ago. Most of the time it was furiously running to and from its nest, bringing back mouthfuls of material each time.
Every now and then it would take a very brief break, stopping and sitting for a minute, seemingly just taking in the morning sun and catching its breath. It would then take off for another round of gathering.
American Pikas are hardy little animals living above treeline in places where the winters can be completely inhospitable to animals. This particular one was hanging out in the rarefied air at about 12,000 feet.