Shell free. A blend created to make no waste and no mess. Trust your backyard birds to the experts at wagner's. Wagner's shell free premium wild bird food offers a no mess, no waste, no growth solution. It is great for decks, gardens, patios, window feeders and any place where you don't want shells or growth from fallen seeds. It also provides excellent nutritional value in a blend your backyard birds will love. Wagner's has specially designed this blend not only without shells but only with seeds that birds prefer - none of this blend will be left behind.