Ace Songbird Black Oil Sunflower Seed Wild Bird Food 10 lbAce black oil sunflower is the best single grain for attracting the widest variety of wild birds to your backyard. The high oil content makes black oil sunflower seeds popular with wild birds. The oil provides birds with the energy they need to live. Black oil sunflower seeds have a soft shell, which makes it suitable for small songbirds. Triple cleaned for purity so birds get the best of the seed. High in oil content to provide birds with high energy