Value wild bird food consists of a basic seed mix to attract wild birds to any feeder. The mixed grains in this blend include milo, cracked corn and sunflower. Fortified with vitamin A and D3 to aid growth, reproduction, feathering, and bone development. Calcium added for improved digestion, bone strength, and eggshell development. . This 40 lb. formula includes added calcium for improved digestion and, bone strength, and is suitable for hopper, tube, or platform feeders.