The results are difficult to predict when breeding border collies and terriers because a mixed breed dog can take on many of the various traits of either parent breed. These breeds don't look much alike and were bred for different purposes, but they have some common traits that reveal clues about a mixed breed's possible appearance and personality.
Border collies were originally bred to herd sheep. Although they evolved into non-working family pets long ago, they still exhibit herding behavior. They are known for their intelligence and athletic prowess. Border collies are among the best breeds for competitive sports, agility and obedience.
This is a medium-size dog with a dense double coat. A black and white scheme is common, but the border collie also comes in a number of other colors. It is not a dog for a couch-potato owner as it requires lots of exercise. Border collies need to be kept busy to prevent boredom and destructive behavior.
They are generally good with older children and dogs, and some even get along with cats. This is a sensitive breed that benefits from early socialization with people and pets. Firm training is necessary because the border collie can become dominant or aggressive.
Male border collies usually stand 19 to 22 inches at the shoulders and reach 30 to 45 pounds. Females are 18 to 21 inches tall and weigh 27 to 42 pounds.
The many varieties of terriers have some similar characteristics. Like border collies, they were trained to act independently. That means they can be stubborn and must have a strong human pack leader. Their original job was to root out vermin. To this day, terriers love to chase small animals, often digging holes in their pursuit of prey.
Another way in which terriers are like border collies is that they are high-energy dogs that need a good deal of daily physical activity. People love terriers because of their joyful, playful and loving personalities. These breeds make excellent watch dogs because they are always alert. Terriers of the same gender sometimes get into fights, and they are not known for appreciating cats. Most terriers love to play with kids.
Many terrier breeds have wiry hair. Others have smooth, curly coats. The various breeds range in size, and most are either in the small or medium category.