A rock won’t stop a rat getting into your garden … they’ll go over, under or around it somehow. But it might block a hedgehog’s path. I’d remove the rock and look for other clues 😊
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
I agree that it could well be a hedgehog @daffodil_5608 although l can't be certain. If you've seen them in your garden, and there's a slight gap under the fence, they could well dig out the soil to make an entrance.
Posts
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.