I do agree with asking your local DU regional biologist, that's what they are there for and they'll have the knowledge of what works in your area. One of the simple things you can do is look around online for commercial waterfowl seed mixes, and plant those around the edges of your ponds. A lot of companies make them. They come with things like wild rice, millet, sago pondweed, wild celery, smartweed, etc. If you get a mix with a lot of the native wetland plants in it, they should be able to keep re-seeding themselves in future years, and you'll hopefully have a good food source in and around your ponds. Good luck!