Hi the Hogfather
Good idea having night vision binoculars. Never tried them, so it’s useful to know they work!
Re. marks on the hog. Quite possibly someone has artificially marked it. Sadly it seems there is more of it about these days and maybe with people being out in their gardens more in the evenings, with lockdown, they have had more opportunity. Most of the hogs here look a terrible mess. It looks as if people keep remarking them, sometimes with different shades of colour, so possibly also more than one person. Very sad to see them like that.