Rabbit

Rabbit burrows are famously called warrens, and they are interconnected burrows. A rabbit's burrow can be created naturally or artificially using pillow mounds. They typically measure around 6.5 feet deep and feature multiple openings and chambers. Due to greater drainage, rabbits prefer to create their warrens on slopes or the sides of rivers or streams, but they can actually construct them in just about any place they can dig. The majority of the day is spent in the burrow by rabbits, who emerge at night to hunt for food.

The female constructs a separate burrow inside the warren called a stop and lines it with her own fur and plant matter when it is ready to procreate. The mother will cover the birth chamber with soil and go to go hunting when the infants are born. By doing so, the young bunnies are kept warm and shielded from danger - which, incidentally, can come from their own father.