The Indian reserve near where I live do it every year or 2. There are often lots of strays/ferals/whatever you want to call it on reserves, and they need to get thinned out from time to time. In a perfect world, everyone would spay or neuter their dog, but it's not illegal to NOT do so, so there really isn't any way to force people to do so.
I wish they would cull some of the friggin cows wandering the highway on that Indian Reserve about 40 km south of you! Somebody's going to get killed eventually, on one of those hairpin turns, in the dark. Just imagine running into one of those things on a motorcycle.





















































