Lyric Nyjer Seed is the perfect treat for your small-beaked feathered friends visiting your backyard bird feeders. The tiny seeds are high in calorie content, making it a popular cool-season bird seed, giving birds plenty of energy whether they're foraging for food in the winter or building nests in the spring. Nyjer seed is carefully cleaned and sterilized to ensure seeds will not sprout under feeders. Lyric Nyjer Seed should be used in either Nyjer tube feeders or Nyjer sock feeders with holes small enough so that the seed does not spill out. Place the wild bird feed in the bird feeders and enjoy watching as Nyjer seeds attract colorful songbirds like American Goldfinches, Purple Finches, House Finches, Common Redpolls and many more! Nyjer is a registered trademark of the Wild Bird Feeding Institute.