Birds require lots of energy for flying, for keeping warm and for many other daily activities. By offering the right high energy foods that birds like, you can attract them to your feeder and help them replenish their bodies. Pound for pound, nothing offers more energy than fruit & nuts. KAYTEE Nut & Fruit Blend is a premium mix of healthful seeds and grains with added nuts and fruit pieces to appeal to a great variety of colorful songbirds.