If you want to go with wetland-type shrubs, that would be your best bet, I think, and just put in plants that are a bit mature rather than tiny.
Some species that are lovely include Buttonbush, Willow, Dogwood (Cornus sp.) , and Swamp Rose (Rosa palustris). You may be able to have something like willow around a perimeter as a living fence, and then plant some more tender perennials on the other side. There are many, many varieties of willow - some are quite colorful, they are a bee-friendly plant, too.
My ducks are fine around mature blueberries. I put a little tube of hardware cloth around a young kiwi vine, but once mature, it doesn't hurt my vines to have the ducks eat the lowest leaves off. They do enjoy that.