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

animal animate arena beast biology bit bridle colt competition critter domestic 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 purebred racehorse red rein rider riding saddle snaffle sport sportive stallion stirrup strap tail thoroughbred vertebrate zoology