The American Thoroughbred race horse Birdstone won which leg of the Triple Crown in 2004?
Summer Bird Summer Bird (April 7, 2006 – December 23, 2013) was a champion American Thoroughbred racehorse, son of 2004 Belmont Stakes winner Birdstone. He was bred by retired cardiologist Kalarikkal Jayaraman and his wife, retired pathologist Vilasini Jayaraman, at their Tiffany Farm near Ocala, Florida. On June 3, 2010, Summer Bird was retired due to complications of a previous injury.
Canonero II Cañonero II (April 24, 1968 – November 11, 1981) was a Venezuelan champion Thoroughbred race horse that may be best remembered for winning the first two legs of the 1971 U.S. Triple Crown, the Kentucky Derby and the Preakness Stakes.