Lyric Delite High Protein Wild Bird Mix means no waste at your bird feeder! It's also a great value, because you don't pay for the shells. Twenty pounds of Delite Wild Bird Mix is equivalent to nearly 40 pounds of the same mix with the shells. You no longer need to worry about bird seed germinating and causing a mess under the feeder, simply resolve the problem by changing your seed. The Delite Mix is waste-free, mess-free and weed-free and wild birds love it.