Went to a class on chickens the other day, and the speaker said something that I have been told several times, poultry will general avoid things that are poisonous as long as they have an adequate food choice. She did say that they may tend to eat things that are poisonous if they have nothing else (acceptable plant material) available. For example, it you unknowingly give them something that is poisonous. So while they may stay away from onions, potatoes, rhubarb, etc normally, they might munch on it if there isn't another choice. Our duck run is around six 4 ft raised beds where I normally grow rhubarb, potatoes, garlic, lettuce, lilies, peonies. The ducks have pretty much "picked the run area clean" that is, the rest of the foliage in the 35 X 30 area around the 4 Ft beds this winter. It was very weedy at the end of last summer, now it is just dirt/mud. (Note: This was not my choice for where to put the duck run since I knew the plants I normally planted can be toxic, but I got out voted so to speak). The beds will be fenced once the potatoes are planted (unless I panic and decide I cannot chance even planting them close) and the rhubarb sprouts (if it does since the ducks have pretty much noodled their way through the entire bed). I planned on furnishing mesclun in planters and chicken forage on the ground in the area of the duck run to provide them a suitable forage material, but after seeing how they have cleaned the area totally of plant material, am concerned that this will not be sufficient. (if it is even allowed to establish adequately). The ducks do get out to free range forage when I am available to be out there with them, but time has been drastically reduced due to weather and increased work schedule. So I am more concerned than ever about our choice of location for the duck run. Either the gardens go or the ducks?