Even though they live in loose colonies, pikas are very territorial and will quickly shout out a challenge to any interloper (human, pika or otherwise) entering their little kingdom. This little guy quickly spotted me and belted out a warning telling me I had entered his little area.
He realized pretty quickly that I was not threat and went about his business gathering food for the winter, running between my legs and even perching on my shoe.
American Pika _(Ochotona princeps)_
Rocky Mountain National Park, CO
Jobu gimbal, Feisol tripod
ISO 400, f/8, 400mm, 1/1000sec
I have a *LOT* more images on my "WEB SITE":http://jayryser.com