The Freeze-Dried Duck Head is by far the most popular snack available in the RAW BAR. It’s a crunchy, nutritious dog snack that makes use of the whole animal. Dogs love the taste of duck heads and the bones act as a natural toothbrush, cleaning the back teeth. Plus, this snack is a great source of calcium and phosphorus. Once you get past the appearance, this is a really great dog snack that pups love!