This fall, more than 10 million Americans went hunting. Some met with success, maybe even managing to bring home some ducks or geese or a deer. Of those who returned empty-handed, many did so with the knowledge that a fair hunt comes with no guarantees. A growing number of people, however, are embracing a different set of rules — they're taking part in hunts that are largely rigged. In the United States, there are at least 4,000 “canned” hunting operations, where people may pay thousands of dollars to pursue trophy animals that have little chance to escape. Bird-shooting operations offer pheasants, quail, partridges and mallard ducks sometimes dizzying the birds and planting them in front of hunters or tossing them from towers toward waiting shotguns. At ranches catering to big-game enthusiasts, hunters can shoot exotic species native to five continents — everything from addax to zebra. Tired of traveling, spending money and coming home with nothing to show for it?" reads an advertisement on the Web site for Old Stone Fence Hunting Adventures in Rensselaer Falls, N.Y. “Book your successful trophy hunt today! ... No license required; no harvest — no charge. Though enterprises like this claim to offer “fair chase" hunts, the promise is hollow, since the animals are confined in fences and the money changes hands only if the hunter gets a trophy. How does an Arabian oryx or a Russian boar find its way to a hunting ground in Pennsylvania or Texas? Many are obtained at exotic animal auctions. A sale at one auction last year included zebras, camels, ostriches, kangaroos and lion cubs — some destined for canned hunts, some for private collections. The three-day sale of 3,225 animals brought in more than SI .5 million. Of course, no one would expect someone like me — a person who works for the Humane Society — to support canned hunting. But in this fight, animal advocates are not alone. A good many hunters also find the practice abhorrent. In its 2003 national hunting survey, Field & Stream magazine asked readers what they thought about hunting animals "in enclosures or fenced-in ranches." Sixty-five percent of those who responded opposed the practice; 12 percent endorsed it and 23 percent said they had no opinion. Game ranches have also been denounced by a number of outdoor sporting groups, including the Izaak Walton League of America, the Rocky Mountain Elk Foundation and the Boone and Crockett Club, which oversees national hunting records. The hunts go on, though, in part because they have the support of the National Rifle Association and Safari Club International, a pre-eminent trophy hunting organization. In fact, its the Safari Club's award program that helps to drive patronage of canned hunting operations.. To win the club's Africa Big Five award, for example, you have to go to Africa to shoot the elephant. the rhinoceros and the leopard, but you can pick off the Cape buffalo and the lion in the United States. There is even an award for Introduced Trophy Animals of North America, in which you can do all your hunting for 18 different species right here at home. In fact, you can shoot all of the species for an award category at just one place. It's one-stop shopping. No more expensive fortnights in the wilds of Africa — and no one to know whether the head mounted above the mantel came from Asia or Oklahoma. But canned hunting is more than crass — its cruel. Animals are sometimes drugged, shot in their cages or at a feeder, or killed slowly with spears. Despite this, only 13 states have passed laws to ban canned hunts involving mammals. This year, New York almost passed such a law, but it was vetoed in August by Gov. George Pataki. New York lawmakers should try again. And so should legislators in other states and in Congress, which has the authority to ban the interstate transport of exotic mammals destined for canned hunts. Canned hunting belongs in the same category as other forms of animal abuse, like cockfighting and bullfighting. Its hard on animals and easy on people — and it should be against the law. Pacelle is a senior vice president of the Humane Society of the United States.