Thistle Seed Wild Bird FeedThistle Seed Wild Bird Feed These seeds are high in protein and a great source of energy. The tiny black oilseeds are ideal for finches and other small beaked birds. Other birds attracted to Nyjer seeds include buntings, goldfinches, house finches, redpolls, and pine siskins. Popular favorite among smaller birds Perfect for finches, nuthatches, and more Designed to be fed in a thistle feeder Available in 5, 10, and 25 lb. bags