I can understand your worry. A couple of months back I had a badger visit my garden a few times over the course of several weeks. I haven’t seen it for several weeks now though. Although while it was visiting the hedgehogs were never caught on camera at the same time, they were around before and afterwards on the same nights. Neither was there any drop in their numbers or activity overall.
This is of course just my own experience and we do know that badgers will attack hedgehogs. Although I believe that badgers do prefer other food.
Is it possible that this could be weather and hoglet related. Maybe mothers aren’t going as far from the nest. Also has anything changed in the area that could have affected the hedgehogs ability to get to your garden?
Finally depending on how you are putting out a camera, or cameras, you may just be missing them. But I suspect from your post that actually any food isn’t being eaten as well?
