Performance Seed is dedicated to providing high-quality wild bird food at attractive prices. Many of our raw materials are purchased directly from producers. We seek out and buy the highest quality sunflowers, millets and other grains. We clean, blend and bag these products ourselves to ensure only the best for your backyard friends and bring it to you at prices that are as attractive to you as our blends are to wild birds. Cardinal's Choice is the ideal blend for cardinals. It contains 60 percent sunflowers with safflower seeds, sunflower hearts and cracked corn.Super premium blend is specially designed to attract cardinals. Made with safflower seeds, sunflower hearts, cracked corn and 60% sunflower seeds. EZ Grab & Pour handle makes carrying and filling the feeder easier. Zipper closure keeps seeds fresh for longer.