Possible Clues:

• Burrowing rodent
• Furry burrowing rodent
• Woodchuck, e.g
• Two males mounting Alpine animal
• Rockies rodent
• Critter in the same family as chipmunks and squirrels
• Thomas the sheep is a rodent up there
• Rodent traps doctor in shopping centre
• Woodchuck's kin
• Hibernating rodent