Bailey's Pocket Mice are solitary, nocturnal, and live in burrows. Pocket Mice mostly eat seeds, using their "pockets," fur-lined, external cheek pouches, to bring seeds to their nests, where they store them in preparation for leaner times. Learn more about the Chaetodipus baileyi, more commonly known as a Bailey's Pocket Mouse, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.