Village I used to live in had a proper duck decoy,,,in fact the wood the pond was in ,,,was called decoy ho,,,
Interesting how they used to catch the ducks,,by going down the narrow Chanel's ,,then ultimately in to big nets,,,all done with a little red coloured dog.....
Here you go,,,,lot of work mind,,,first dig your pointy pond,,,lol
http://en.m.wikipedia.org/wiki/Duck_decoy_(structure)