The unobtrusive, speckled grouse Is the most prestigious bird in the world. A good grouse moor in August is a very exclusive place. The first line of Grouse Shooting and Management runs: ' It would be idle to pretend that grouse driving is the sport of other than the rich.' To provide a party of seven guns with a week's good shooting may cost more than £ 1,000. Why does it cost so much? Who are the people that can afford this sort of luxury? What makes them feel that their money is well spent?