Discover 10 Amazing Border Collie Mix Breeds and Their Unique Traits at Puppiespedia.com. From the intelligent Bordoodle to the energetic Border Aussie, find the perfect hybrid for your family in 2025! Why Border Collie Mixes Are Special Border Collies, ranked the smartest dog breed by veterinarians, per 2024 studies, are known for their herding instincts ...