I'm considering planting a 0.10A plot of forage for my ducks. Tried Alfalfa last year, but in a different location. I was unable to keep the ducks off the plants last year, and of course they ate it all. This year some Alfalfa has returned, but again the ducks are eating it. Which is the point, I know! What else should I be considering? What about Buckwheat or Sudangrass? Anyone? Thanks!