Burrower (noun)

An animal or insect that makes or lives in a burrow.

Origin:

From burrow + -er.

Examples:

1. The burrower was seen digging into the sand on the beach.
2. The rabbit is a common burrower, creating extensive underground networks of tunnels.
3. The gophers are burrowers that cause extensive damage to crops and gardens.
4. The moles are burrowers that feed on insects and worms in the soil.
5. The prairie dog is a type of burrower that lives in large communities in the western United States.