This is actually a extremely advanced stage of "duckbillitis". You must cure it or it will spread to every bird within 40 miles. Culling ducks is the only thing that will help. Remember a culled duck is not a waste, they make great compost!
So THAT'S what's wrong with me, as well as my precious chickens! Thankfully, I know somebody (a fellow BYCer) who lives in MN and is crazy over waterfowl of all kinds, so I'm going to try to take him my horrific ducks sometime in the near future.......and then run in opposite direction as fast as possible!

~Alex