equestrian sport. the leg of the rider in the stirrup, riding on a horse

animal animate arena beast biology bit bridle close colt competition critter domestic double dressage equestrian equine equitation filly foal foot gelding girth halter harness hoof hoofed horse horseback horsemanship horses leg livestock mammal mare mustang muzzle nose organism pet pony portrait purebred racehorse rein rider riding saddle snaffle sport sportive sports stallion stirrup strap tail thoroughbred vertebrate zoology