Hi Lisa
Personally, I wouldn’t clean it out just yet. It is possible that it could be a female in the box and they tend to stay hibernating for as much as a month after the males have returned.
If you’re really careful it probably wouldn’t do any harm to have a peek this evening, especially as you think he is probably the hog who has visited.
A lot of hogs are very particular about their nests and much prefer to make them themselves, so when you do clean it out it is best to leave some bedding nearby for the hog to take in itself.
