Just an update to my beaver problem that may help others, I figured out that if I only cleared a two foot wide section of the spill way ,that they had dammed, allowing water to flow through, they would be drawn to this spot. I set the conibear trap just in front of it. Killed three in two days. However, what I believe to be the last and largest beaver in the pond set the trap off and escaped. It will now not go near the spill way as long as the trap is there. If I remove the trap he dams it all up again. Smart buggers.