Feral pig, Wild Boar, Wild Hog, Russian Boar, farm pig. They are all pigs, all very slight variants of the one species Sus scrofa. (The tusks are removed from farm pigs at birth.) In the US, they are all called "pigs."
No sus scrofa is native to North America.
We have posted in the past about the pig/boar hybrids which have been expanding their range across the US, wreaking havoc in the process to woodlands and to agriculture. They are so prolific, and so destructive, that most areas of the US now have open season on the pigs. Hog wild: Feral pig population explodes in U.S
Distinguishing European (aka Russian) Boar from farm pig/boar hybrids is almost impossible, but it is thought that, in many or most areas, most animals are hybrid. Since they're all the same species, it doesn't really matter. Pigs.
Texas and California have seen enormous population growth of Sus, but they have spread around the country - even around Albany NY where the biggest pigs have traditionally been the NYS politicians.
Since every area in the US in which they have appeared is eager to be rid of them, year-round hunting opportunities are abundant. Hunting over bait stations is entirely legal. Some use AR-15s, some use bow, some use revolver, and some macho dudes use baying dogs and kill the pigs with a hunting knife.
There are simply not enough pig hunters to control these creatures, so I propose releasing Wolves into areas where the wild pigs are a problem. The Wolves would have a field day.
Some people do not enjoy the taste of wild pig, which is a bit gamier than the corn-fed farm pig. I have had the wild boar, the same Sus scrofa, which lives in the Appenines of Umbria, and it is a special treat when cooked the ways the Umbrians do it. "Cinghiale." I've had it there cooked several ways, and the sausage too. Even snuck some cinghiale salumi home in my bags.
Here's Pigging out in Umbria
Here's a number of Italian recipes for wild boar/pig/whatever, to perhaps inspire our American pig hunters.
Here's a pic of my pal (on the right) with a Texas pig he strangled with his bare hands shot.