Who digs a whole like this ? Is it a rat ?
This hole was at the foundation of my home
Certified GKH Gardening Expert
Rats, moles, voles, birds, and many other small animals will all do this. It will be hard to tell which unless you see evidence, such as droppings, food, or anything else that will identify the pest. Once you know what the pest is, you can begin to get rid of it.