Mr (or Mrs) Mole?
Like you say, a rare sighting.
There is a Badger set within a mile of here, I have access to the land but I have never yet seen a Badger. I can see where they have been trails in the wood but the actual Badgers seem to be invisible. Is there a 'better' time to visit the vicinity of the set? Like late at night, or early in the morning? I have seen deer browsing nearby but only briefly.
A Trail Camera could watch for you 24-7 and give the times the badger was active.
There is nothing worse than a sharp image of a fuzzy concept ;~) Mike Grace