What the Duck! – All-Natural Duck Feet for Dogs – Protein & Joint Support! Our duck feet are American-made, all-natural, and a single-ingredient treat that’s packed with protein, glucosamine, and chondroitin to support joint health and muscle strength. These crunchy, savory treats are perfect for keeping your pup entertained, especially aggressive chewers! 100% of our duck feet are sourced from a family-owned farm in the United States, ensuring top-quality, ethical sourcing. Great for dogs of all sizes.