Pennington Premium Black Oil Sunflower Bird Seed is a source of high quality protein. Black Oil Sunflower seed is the most popular choice of seed and bird food. It's high oil content is simply irresistible and provides a source of high energy for your feathered friends. Plus, it comes in a convenient, reusable container.. Bird Food Type: Seed. Bird Supply Type: Seed. Bird Type: Multiple Bird Species. Food Type: Seed. Pack Size: 1. Primary Ingredient: Black Oil Sunflower. Product Weight (lb.): 11 lb. Returnable: 90-Day. Product Depth (in.): 9.5 in. Product Height (in.): 13 in. Product Width (in.): 9.5 in. Bird Type: Multiple Bird Species. Bird Food Type: Seed