Hi laurabiding
Well it could be the cats! It wouldn’t be at all surprising of they had gone to hibernate now. Some take a while before they will adopt a hog house preferring to hibernate under a shed or even build a nest amongst some bushes.
I always leave food out, at least for a couple of weeks after all the hogs have disappeared, because sometimes they disappear and come back a bit to start with. Many of us leave some food out all winter in case.
Often, at this time of year it’s just a question of hoping they come back safe and well in the Spring.
