Your garden sounds like a wildlife paradise for all sorts of animals so keep up the good work.
Stef has given you some great advice on feeding hogs backed up by Nic.
When I first saw my hogs back in 2015, after a long abscence, I gave them mealworms, sunflower hearts & peanuts which I now know are not good for them but thats all I had at the time e.g. the food I give to birds and of course the hogs loved it.
After info from the forum and own research I now give them proper hog food (I give them Wild Things hog biscuits) but also have log piles and a compost heap for them to forage for natural food which is what we all really want them to eat of course (who doesn’t enjoy a nice juicy beetle!).
I have tried wet cat food several times without sucess even when I have put nothing else out. The hogs sniff it but just walk away. I also tried some of the Spikes hog food with the same negative result.
My hogs do snuffle around under the bird feeders looking for spillage which is inevitable but they won’t find too many sunflower hearts or mealworms as the blackbirds and woodpigeons hoover up a lot of what the small birds drop anyway.