Hi annamary
Sounds about right – hogs being perverse! I had one once who built his nest in my feed box – like yours on top of the food bowl! It wasn’t quite such a problem here – I just had to get a new feed box.
It’s not a good idea to add anything yourself – hogs are far better at making hibernation nests than we would be, I think. They use leaves and layer them like tiles – pretty amazing really!
The only thing is, that just because the hog builds a nest there, doesn’t necessarily mean it will use it – but I imagine it would still block the access (if I’m understanding it correctly). You could try to encourage the hog to use your nest box by putting a handful or two of leaves into it to give the hog the idea to use that instead and leave a good supply close to it of medium sized leaves, long grasses, etc. Don’t put too much in the box – it might put the hog off as most seem to like building their nests themselves.
