The ingredients of Battles Poultry Easyverm are: Garlic, Thyme, Mint, Elecampane, Echinacea, Wormwood, Cinnamon, Aniseed, Ginger, Iron Sulphate, Calcium Carbonate and Wheat...So maybe it would be good to grow these and let your flock seek their own medicine. I'm thinking specifically for my quail. Any thoughts anyone?