Has anyone tried keeping ducks in a vegetable patch ?. I heard they ate caterpillars and other nasties, What do you need for ducks ? I mean, what sort of artificial pond, food and, of course, where do they sleep at night ? I ve got a.bunch of hens, but so far haven't dared ducks as I m a bit worried about my vegetables. I ve got a fence to keep the hens out of the veg and pretty flowers, but ducks would of fly over the fence.