I don't know about Oregon. Oregon gets pretty cold, doesn't it? They are fairly prevalent in some parts of California. Anyway, I would not be too disgruntled about what you don't have, that is pigs to shoot, as their destructive habits far out number their benefits. As omnivores, they will displace other beneficial game and uproot the landscape to the determent of the environment. You don't want hog trouble to begin with, but where it already exists, then by all means, do your very best in every attempted eradication, which will never happen, and enjoy both the hunting and the "groceries" you get from them. There is no "End of Line" with pigs.