An animal burrow is a hole or den area in the ground that is usual dug or cleared out by the animal and their mate in which to birth their young. The area is used as a home for the family unit for a...
moles
They are called burrowers.
A burrow believe it or not is actually an owl. They are the smallest species of owls.
Another name for an animal burrow is a den. My dad and I came across this answer in a crossword puzzle.