Pika \Pi"ka\, n. (Zool.) Any one of several species of tailless rodents of the genus {Ochotona} (formerly {Lagomys}), resembling small rabbits, but with short ears alnd legs. They inhabit the high mountains of Asia and America. Called also {calling hare}, and {crying hare} and {rock rabbit}. See {Chief hare}. [1913 Webster +PJC]
Chief hare \Chief" hare`\ (Zool.) A small rodent ({Lagamys princeps}) inhabiting the summits of the Rocky Mountains; -- also called {crying hare}, {calling hare}, {cony}, {American pika}, and {little chief hare}. [1913 Webster] Note: It is not a true hare or rabbit, but belongs to the curious family {Lagomyid[ae]}. [1913 Webster]