according to my supplier :
Most Wild Boar sold today isn't truly wild. Even though it sounds like an oxymoron, Wild Boar is often farm-raised, since “Wild Boar” is a distinct species of hog, regardless of whether it's truly wild or not. Our Wild Boar is actually wild Wild Boar. Each Wild Boar is humanely hunted, trapped and brought to a holding pen before slaughter.
A truly wild product, wild boar is free roaming and eats a natural, wild diet of foraged nuts, legumes and other forest foods. This gives it a sweet and nutty flavor, a deeper color, leaner texture, tighter grain, and bolder taste than domestic pork. It is easily substituted for pork in any recipe.
Wild boar is an invasive and destructive species. In fact, some say that the act of eating wild boar helps the local environment from which it is caught.