Because of a border collie's intelligence and talents this dog breed has often mixed with other breeds. Often this is done intentionally in an effort to try to create a mix that combines favorable traits.
Generally speaking, Border Collies should not be mixed because it damages the breed. The Border Collies focused personality is bred for working livestock and cross breeding weakens the herding instinct in the offspring.
Understanding your mixed breed dog's heritage is important to knowing what are his or her needs. With even a small mix of border collie bloodlines you can expect a highly intelligent dog that has a great deal of long lasting energy. Adequate amounts of daily training, exercise and interaction will be important for a dog that includes a mix of border collie.