From the New Hampshire Fish & Game Department - Public Asked to Report Feral Swine
Concord, New Hampshire - The public is being asked to report any sightings of free-ranging feral swine, more commonly called wild pig, wild boar or feral hog. These animals can now be found from Florida to Washington, with an estimated population of 5 million nationwide. Feral swine are not native to North America and have expanded their range from 17 to 39 states in the last 30 years. They currently inhabit many northeastern states, including New Hampshire, Maine and Vermont.
Expansion of this invasive species is of significant concern to farmers, livestock producers, natural resource managers, animal health officials, and the general public. In the past few decades, feral swine have arguably become the most invasive and destructive large mammal species in North America. They have been labeled an ecological disaster, in large part because our ecosystems did not evolve with feral swine and therefore have not adapted to their damaging behavior.
More on the dangers of feral hogs in New Hampshire ...