A perfectly crunchy dog treat for meat-loving dogs BLUE Wilderness Trail Treats High-Protein Crunchy Dog Biscuits feature real duck as the first ingredient. These high-protein and grain-free dog treats are made with the finest natural ingredients. Bring out the wolf inside your dog with tasty duck potatoes and flaxseed packed into every bite. Like all Blue Buffalo dog treats these treats for dogs don t contain chicken (or poultry) by-product meals corn wheat soy artificial flavors or preservatives. Watch your dog s tail wag when you reward them with BLUE Wilderness Trail Treats High-Protein Crunchy Dog Biscuits.