Why do wild boars make that menacing roar?

Answer 1

Wild boars "blow" when they feel threatened, often these blows are quite deep in pitch an sound almost like a roar. When mating, adult male hogs tend to make various noises as well. A "roar" from a wild boar could mean several things like it us injured, mating, rough-housing, or feels a sense of unease. If u hear a blow or rough in the woods, most likely the animal can see you although you may not see it. You should probably retrace your streps an leave the area...they have been known to charge at things that startle them or challenge their dominance.