Pikas are in the rabbit family, live at high elevations (9,000 to 13,000 feet) and live in fields of course boulders. Pikas do not hibernate so they must gather food to live on during witner months at high altitude. Round ears and no tails give these 4 inch long critters a cute look.
Dunno a lot about picas but I do know that they are not rodents. Like rabbits, they are lagomorphs: K-Animalis, P-Chordata, C-Mammalia, Order-Lagomorpha. Basic tooth differences are important in separating lagomorphs from rodents. ________________________________
Mike, I deleted reference to rodents based on your expertise. Also, I corrected the spelling from "pica" (wrong spelling) to "pika" (correct spelling) Al Perry