Answer: pikas

AnswerCrossword Clue
PIKASRock rabbits
PIKASAnimals resembling guinea pigs.
PIKASMouse hares of N. America.
PIKASRabbitlike animals
PIKASRabbitlike mammals
PIKASRabbits' cousins
PIKASDenizens of the Rockies
pikasPIKA, a small mammal (any of a class of warm-blooded vertebrates)
pikasany of several small, brown to gray tailless mammals of the genus Ochotona, resembling rabbits with short ears and legs and inhabiting western mountains of North America and parts of eastern Europe and Asia