I have a different view regarding the beaver. I have a biology degree, I've been a bird watcher for years, consider myself an amatuer naturalist and a conservationist, so please don't mistake me for an animal hater. I was told by a wildlife biologist to nip the probelm in the bud and trap them right away. Well, I wanted to be a do-gooder too and I didn't do anything. Well, now I am currently in all out combat with the beavers on my place....and for those who don't like that, don't worry, I'm losing.
I don't mind the occasional dam on the creek. It usually doesn't back up enough to kill and trees but it does stagnate my pond a little. No big deal. I don't get worked up about the hundreds of little (planted) pines they cut down and strip. They were planted for timber, but I'm willing to share. I'm not too concerned that every larger pine around the pond (10 acres) has been cut down into the water. I don't like any of that, but I can live with it.
But for all you folks that think the beaver is just another animal with its own little niche in the ecosystem, you are deluding yourself. The thing that finally pushed my benevolence over the edge was that they are ringing trees in my creek bottom and valleys. I'm not talking about 10 inch diameter trees. I'm talking about trees two men can barely get their arms around. The beavers eat the bark from the ground to about 18 inches up, completely ringing the tree. The entire rest of the tree is left to die. Man is about the only other species you can accuse of that sort of wanton waste of living resources. In one valley alone they have rung over 30 humongous trees. All dead or dying now. And before you ecologists suggest that these trees will make good habitat for wood ducks, woodpeckers, blue birds etc. Nope. Most of them are gums. And while the gum isn't the most desirable tree in the world these trees were major canopy trees, probably 75 years old. When they die, they crumble and fall apart. No good for nesting. Just complete and utter waste.
We've trapped some. I've shot a few. (I'm a good rifle shot but have a heck of a time hitting a swimming beaver). But the damage goes on and they are now working up the creek bottom. If they start ringing my wonderful 75 year old white oaks I will hire someone to take care of them.
But I'm not sure that a prfessional trapper would have any better luck. As soon as you get rid of them, more come back. They have a make-shift lodge but I don't know how to destroy it. I doubt unlicensed folks can get hold of dynamite anymore.
I'm trying to put a good spin on all this. Maybe opening up the canopy by getting rid of gums (that's all they've hit so far, maybe my white oaks, sycamores and hickorys will fill the gap.