You are certainly feeding them. They will keep coming to what look to them to be handouts.

Why don't you take the necessary course, get a trapping license and treat them as an income source. As I understand it every winter pelt that goes to market gets sold and they average $20-$40 apiece. You are far enough north to get a pretty good winter prime and northern pelts can bring double that. There are a lot of beavers in the country. We even see them quite regularly inside the city limits of Minneapolis. You are probably not the only one with the same kind of problem either; so you might be able to make some decent cash working pest control for others with a similar problem and still have the pelts to sell.