A commercial seed mix typically contains large quantities of milo and millet, as well as smaller quantities of cracked corn, sunflower seeds and other seeds. Wheat is a popular filler addition but has little value for birds. These mixes can be useful but birders may see large quantities of waste as birds seek out favorite seeds in the mix. To prevent as much waste, augment a commercial mix with more desirable seed such as sunflower chips or niger seeds.

