【How-to】What can ducklings eat - Howto.org

There are many edible flowers, but also some toxic ones including buttercup, daffodill, iris, lilies, lily of the valley, lupine, poppies, sweet peas and tulips. Most weeds and herbs are safe for your ducks to eat, but milkweed, pennyroyal and vetch can all be toxic. … Onions in large amounts can also be toxic.