I am new to the backyard homesteading business and I have 6 ducklings arriving in a couple of days. I was wondering if I could just feed them the snails and various bugs I find in my garden, along with lettuce and other veggies and grains. I wanted to feed them something closer to what their natural diet would be, but I can't seem to find any suggestions for an alternative to starter feed. Does anyone know what the proper "mix" of veggies, bugs and grains would be? Or do I really need the duck starter?