He found that his pointer ran 2.5 miles for every mile he walked. His buddy's Lab covered 1.5 miles for every hunter-mile. More fascinating, they hunted prairie chickens and sharptails in Nebraska sand hills, pheasants in South Dakota and ruffed grouse in Minnesota and discovered that while speed and distance covered varied with terrain, the hunter-dog travel ratio was the same. This ratio will vary among breeds and will change for every hunter/dog partnership. Essentially, a cooperative dog will hunt at a range where it can comfortably keep track of, and pace with, its hunter.