1) Burrower 2) Groundhog 3) Hibernating sciurid 4) Marmot 5) Marmota monax 6) Rodent in a tongue twister 1) Groundhog 2) Marmot 
• (n.) The yaffle, or green woodpecker. • (n.) A common large North American marmot (Arctomys monax). It is usually reddish brown, more or less grizzled with gray. It makes extensive burrows, and is often injurious to growing crops. Called also ground hog.
A Cree word for ground hog.
one of 14 species of marmots, the woodchuck is basically a giant North American ground squirrel. It is sometimes destructive to gardens and pasture ... [2 related articles]
Wood'chuck` noun 1. (Zoology) A common large North American marmot ( Arctomys monax ). It is usually reddish brown, more or less grizzled with gray. It makes extensive burrows, and is often injurious to growing crops. Called also ground hog . 2. (Zoology) The...