Hi Nick
If you’re worried about the roads, the ideal thing is to try to encourage anyone you can in the area to have hog holes in their fences/walls and create a hog highway. That way the hogs have more available habitat without having to go on the roads.
Sadly, though, roads are a perennial problem for hogs which it is hard to avoid, but if the hogs have been visiting your garden anyway eating the remains of bird food it’s probably a good idea to offer them cat/dog/hog food or cat/kitten biscuits. Most bird food is not too good for hogs – including sunflower hearts and peanuts. So you will be doing them a favour offering them some better supplementary food than they are finding under the bird feeders.
There’s some information about feeding in this link, together with a couple of ideas for cat deterring feeding stations. https://www.hedgehogstreet.org/help-hedgehogs/feed-hedgehogs/
Good luck. Hope all goes well.
