The Royal Wing Sunflower Hearts Wild Bird Food is a top-choice for backyard bird feeders everywhere. Some types of bird seeds come with the shells attached, and these shells often end up on the ground or on your deck. This particular Royal Wing bird feed, however, only contains the meat of the sunflower - no shells. That means there's no mess to clean up! On top of that, these sunflower seeds are a great source of protein, fat and fiber to keep the local birds healthy and well-fed. Stock up today. Satisfaction guaranteed.