What could that be? Cat? Fox? They are right on my windowsill outside, ground floor but not very low and today around midnight while taking rubbish out I noticed earth all over 2 of the window boxes - it had been dug out of them. Put it back in, looked out of the window now so 2.5 hours later and exactly the same.
Really puzzled as was sitting in the room all that time with cats right by the window and have not heard anything digging there.
Has this happened to anyone else?
What could it be?