Mysterious tunnel and wood chip pile
Hi, I wonder if you can help solve a mystery. I discovered my wood chip had been piled up into a mound and thought it maybe a hibernating hedgehog.
On further investigation there is actually a tunnel that runs under my bunker. I am hoping it is not rats but am confused as I would have thought rats would ran behind the bunker as its not a burrow. I would also imagine that rats would not have caused a mound.
Our back garden is paved with a wood chip area where the bunker and shed is. Any thoughts would be appreciated.