Squirrels, beavers and armadillos, in that order

I could never get the pipes to work, but know people who have. It seems they work better in places where there is constant water level and we have wildly varying. When a damn gets built on one of our ponds now, we dig a hole out of the middle and cover any of the tunnel heads we can find, wait till dark, drop several pool chlorine pucks in the hole, pour brake fluid on the pucks and cover up the hole. Sit on rear of tailgate with spotlight and shoot them with a hipo rifle when they come out coughing. They will eventually come out anyway without the chlorine gas, but they will dive on you and you have to be quick with that first shot and its usually one or two at a time. If one were so inclined, he could turn the tails into the state for a $5/tail bounty, too.

The 'reel' traps work well too: you anchor the reel to the bottom of the pond in at least 4 ft. of water and to the bank. The beaver takes the bait on the bank, trips the reel and it drags the beaver to the bottom of the pond where it won't pass through the chock and drowns. If you go that route, use 3' anchors, because we trapped one a few years back that weighed 49 lbs!! They are alot safer than the connibear traps imo.

They are also easy to shoot when contained in Hav-a-Hart traps, but you're talking the biggest one they make which probably runs $100.

Best overall control is a healthy population of water moccasins. Six years ago we killed one that was abnormally fat and cut it open to find four baby beavers inside!! Haven't killed a moccasin since.

Silencers? Flash suppressors? Sub-sonic rounds? Too many Caddyshack reruns