Saw this on a waterfowl forum
http://winnipeg.ctvnews.ca/specially-designed-gates-protect-marsh-from-migrating-carp-1.1326329
http://winnipeg.ctvnews.ca/specially-designed-gates-protect-marsh-from-migrating-carp-1.1326329
I've seen this first hand. The ducks don't even swim, they just walk on the fish.
:wave: