Abert's Squirrel - Prescott Nat'l Forest - Prescott, Az.
The pretty ears caught my eye as he/she was busily at work in the pines.
From Wikipedia: Abert's squirrel (or tassel-eared squirrel) (Sciurus aberti) is a tree squirrel in the genusSciurus endemic to the Rocky Mountains from United States to Mexico, with concentrations found in Arizona, The Grand Canyon, New Mexico, and southwestern Colorado.