Hi, I volunteer at a place that has a pond with eleven domestic ducks. Last summer a wild Mallard showed up with her six ducklings, but they did not make it due to a Great Blue Heron that took up residence. Well the Heron is gone but a pair of wild Mallards showed up about a month ago. They have not left yet and we are wondering if they will try to hatch a brood out this spring. If so (and if another Heron shows up) we need some sort of shelter for them. So I am looking for some draping duck resistant plants, we were thinking of putting the plants in big pots so the ducks cannot get to the roots of the them . I was thinking along the lines of Vinca or some ornamental grasses. Would those work? Would a floating island provide shelter for ducklings? Or would the domestic ducks just eat everything on the island? Here are some pictures of the pond. As you can see the ducks have eaten all the plants in there.