| Birdstone | |
|---|---|
 Birdstone at Old Friends (2024) | |
| Sire | Grindstone |
| Grandsire | Unbridled |
| Dam | Dear Birdie |
| Damsire | Storm Bird |
| Sex | Stallion |
| Foaled | 2001 |
| Country | United States |
| Colour | Bay |
| Breeder | Marylou Whitney Stables |
| Owner | Marylou Whitney Stables |
| Trainer | Nick Zito |
| Record | 9: 5-0-0 |
| Earnings | $1,575,600 |
| Major wins | |
| Champagne Stakes (2003) Travers Stakes (2004) Triple Crown race wins: Belmont Stakes (2004) | |
| Awards | |
| NTRA "Moment of the Year" (2004) | |
| Last updated on June 18, 2007 | |
Birdstone (foaled May 16, 2001, in Kentucky) is an American Thoroughbred racehorse best known for winning the 2004 Belmont Stakes and has become a successful sire.
On August 28, 2020 Birdstone was pensioned from stud duty to Old Friends Retirement Farm in Georgetown, Kentucky where he will be accessible to his fans from all over the world.