Hi Jackietb
If you have already done that, I would leave it now. I wouldn’t add anything once a hog has finished building a nest and moved in. But it would probably cause more upheaval to move it than to leave it now. Normally, I would prefer to use natural materials, i.e. cover with brushwood, etc. or place the house under a bush, so that everything can ‘breathe’. I am assuming there is sufficient ventilation.
Just be aware that sometimes hogs build nests and don’t use them. I had one here one year. The hog built a lovely nest but eventually decided not to hibernate and only used it for over-day stays and then not every day, so obviously had another nest elsewhere.
