* They are opportunistic den users: Red foxes will readily use existing dens, whether created by other animals like badgers, or even natural formations like caves.
* They don't always dig their own: They'll only dig their own dens when necessary, usually for raising kits or escaping predators.
* Their dens are simple: Their burrows are typically shallow and short compared to the complex burrows of dedicated burrowing animals like rabbits or badgers.
So, while they can dig and use dens, it's not a defining characteristic of their lifestyle. They are more accurately classified as terrestrial animals, meaning they primarily live on the ground.