The term "active dog" is a common expression used in hunting and field sports to describe canines that are highly energetic, lively, and full of enthusiasm. These dogs have strong prey drive and love to chase after game such as birds or small mammals. They require regular exercise and training to maintain their physical and mental well-being. In addition to hunting activities, active dogs can also excel in other sports such as agility, flyball, and frisbee. Overall, the phrase "active dog" refers to a type of canine that is highly engaged and full of energy, making them ideal companions for individuals who enjoy an active lifestyle.