Tim, thank you for bring up this subject! These are the types of subjects from which we really learn!
The hardest thing for all of us to learn is perspective. When to do something and when not to do something. When to cross the street and when not to cross the street.
We have lots of potential problem species. Canada geese, otters, beaver, muskrats, deer, snakes, cormorants, mute swans and many, many other species. I personally have problems with deer, Canada geese and muskrats.
The first step is always to try and modify the habitat to discourage the unwanted species.
The second step is to harrass the animal(s) hoping that they will leave.
The last step is to remove the unwanted animal. This really is where perspective comes in. I'm not about to go out and just start shooting deer out of season. However, during deer season, I invite lots of people out to shoot as many deer and they can legally get.
Again Tim, thanks for bring up this subject.