After they establish in north western Ontario i'll believe it . Snow measured in yards deep , long cold winters and we're loaded with bears and wolves ready for them . Bears and wolves killing adult moose to farmers cows and wolves killing bears so i see a few pigs as nothing more than lunch that won't establish in any great numbers around here . Just watched a program on youtube where they said up to 3.5 million in Texas that would be 10 million right now without hunters . Showed one big farm from the air with $50,000.00 in crop damage in one year . Two guys went hog hunting with AR-15s from a helicopter over 300,000 acres and got 4 in one afternoon . The pilot said sometimes you get a lot and sometimes you don't . Talked to a guy in Mississippi who has 16,000 acres in soy beans and rice and now lots of hogs but not huntable in daylight and difficult at night with night vision because his fields are all divided by bush lines to prevent erosion so even at night you don't see many even though there are lots . Dogs are of no value except for the entertainment of dog hunters but killing 3 or 4 is of no value to the farmers and helicopters don't work because the hogs stay in the swamps and heavily forested areas during the day . He allows anyone on his property as long as they stay on the roads and shoot from the truck . Guys with 4 wheel drives who drive through the fields cause as much damage as hogs .