Black Oil Sunflower Wild Bird Food appeals to most seed-eating species. Black oil sunflower seeds are a tasty choice that help draw everything from Juncos to Nuthatches to your backyard, satisfying any bird enthusiast. This bird seed is also highly nutritious because it is so oil-rich. You can feel confident knowing the local birds are getting the protein, fat, fiber and energy they need to stay healthy all year round. Satisfaction guaranteed.