Look at the package and the seed for these signs of quality. You may not be getting your money’s worth from economy seed if what’s in the bag isn’t going to get eaten by the birds.
Look for blends with a high ratio of these seeds. They’re favorites of most birds.
Fillers that will be consumed
Pistachios, cherries and raisins fill more space in the bag but will be eaten by the birds. Millet, wheat, oats, cracked corn and peanut hulls may look like they add variety, but they mostly take up space. And, many birds discard them.