AP Photo/The Canadian Press/Jeff McIntosh
Prince William and Kate, the Duke and Duchess of Cambridge, and Prime Minister Stephen Harper, left, leave a reception at the Calgary Stampede on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jeff McIntosh
Laureen Harper, left, and Prince William and Kate, the Duke and Duchess of Cambridge, attend a reception at the Calgary Stampede on July 7, 2011, in Calgary, Alberta.
David Rose/WPA Pool/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, wear their new Smithbilt cowboy hats as they watch a rodeo demonstration on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jeff McIntosh
Prince William, the Duke of Cambridge, speaks during a reception at the Calgary Stampede on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jeff McIntosh
Prince William and Kate, the Duke and Duchess of Cambridge, and Canadian Prime Minister Stephen Harper watch dancers while attending a reception at the Calgary Stampede on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Nathan Denette
Prince William and Kate, the Duke and Duchess of Cambridge, watch a bull riding demonstration during the Calgary Stampede on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Nathan Denette
Prince William and Kate, the Duke and Duchess of Cambridge, and Canadian Prime Minister Stephen Harper react as they watch a bull rider at the Calgary Stampede on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Nathan Denette
Kate, Duchess of Cambridge walks to a rodeo demonstration during the Calgary Stampede in Calgary, Alberta, Canada, on July 7, 2011.
AP Photo/Charlie Riedel
Prince William and Kate, the Duke and Duchess of Cambridge, are seen during a reception at the BMO Centre in Calgary, Alberta, as they continue their royal tour of Canada on July 7, 2011.
David Rose/WPA Pool/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, wear their new Smithbilt cowboy hats as they watch a rodeo demonstration at the BMO Centre on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jonathan Hayward
Prince William and Kate, the Duke and Duchess of Cambridge, Canadian Prime Minister Stephen Harper, right, and Laureen Harper, react as a child rides a sheep at the Calgary Stampede in Calgary, Alberta, Canada, on July 7, 2011.
Chris Jackson/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, watch a rodeo demonstration during a reception at the BMO Centre on July 7, 2011, in Calgary, Alberta, Canada.
Chris Jackson/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, watch a rodeo demonstration at the BMO Centre on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jonathan Hayward
Prime Minister Stephen Harper, right, Prince William, Kate, Duchess of Cambridge and Laureen Harper, left, watch a bull riding event at the Calgary Stampede in Calgary, Alberta, Canada, July 7, 2011.
Chris Jackson/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, watch a rodeo demonstration at the BMO Centre on July 7, 2011, in Calgary, Alberta, Canada.
Chris Jackson/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, watch a rodeo demonstration at the BMO Centre on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jonathan Hayward
Kate, Duchess of Cambridge speaks to a little girl at the Calgary Stampede on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jeff McIntosh
Prince William, Duke of Cambridge talks with cowboys at the Calgary Stampede on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/Charlie Riedel
Prince William and Kate, the Duke and Duchess of Cambridge, watch a bull riding demonstration during a reception at the BMO Center in Calgary, Alberta, as they continue their royal tour of Canada, July 7, 2011.
Chris Jackson/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, watch a rodeo demonstration at the BMO Center on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/Charlie Riedel
Kate, Duchess of Cambridge watches rodeo demonstrations during a reception at the BMO Centre in Calgary, Albeta, Canada, July 7, 2011.
AP Photo/The Canadian Press/Jonathan Hayward
Prince William, Duke of Cambridge throws a barrel into the back of a chuckwagon during his visit to the Calgary Stampede on July 7, 2011, in Calgary, Alberta.
AP Photo/The Canadian Press/Jeff McIntosh
Prince William and Kate, the Duke and Duchess of Cambridge, appear at the Calgary Stampede on July 7, 2011, in Calgary, Alberta, Canada.
David Rose/WPA Pool/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, greet people as they arrive for a rodeo demonstration at the BMO Centre on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/Charlie Riedel
Prince William and Kate, the Duke and Duchess of Cambridge, arrive via stage coach for a reception at the BMO Centre in Calgary, Alberta, as they continue their Royal Tour of Canada on July 7, 2011.
Chris Jackson/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, arrive on a horse-drawn carriage at a government reception at the BMO Centre on July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jonathan Hayward
Prince William and Kate, the Duke and Duchess of Cambridge, wearing white cowboys hats, top, arrive at the Calgary Stampede atop of a horse-drawn stagecoach on July 7, 2011, in Calgara, Alberta, Canada.
AP Photo/The Canadian Press/Jonathan Hayward
Prince William and Kate, the Duke and Duchess of Cambridge, wearing white cowboys hats, top, arrive at the Calgary Stampede a top of a horse drawn stagecoach on July 7, 2011 in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Jeff McIntosh
Prince William and Kate, the Duke and Duchess of Cambridge, wave to admirers following a tour of the 21st Century Research and Innovation Centre in Calgary, Alberta, Canada, on July 7, 2011.
AP Photo/The Canadian Press/Jeff McIntosh
Prince William and Kate, the Duke and Duchess of Cambridge, take a tour of the 21st Century Research and Innovation Centre in Calgary, Alberta, Canada, on July 7, 2011.
AP Photo/The Canadian Press/Jeff McIntosh
Prince William and Kate, the Duke and Duchess of Cambridge, take a tour of the 21st Century Research and Innovation Centre in Calgary, Alberta, Canada, on July 7, 2011.
AP Photo/The Canadian Press/Jeff McIntosh
Prince William and Kate, the Duke and Duchess of Cambridge, are greeted as they arrive at 21st Century Research and Innovation Centre Calgary on July 7, 2011.
AP Photo/The Canadian Press/Nathan Denette
Prince William and Kate, the Duke and Duchess of Cambridge, are greeted by shy 6-year-old Diamond Marshall as Alberta Lt. Gov. Donald S. Ethell looks on, July 7, 2011, in Calgary, Alberta, Canada.
AP Photo/The Canadian Press/Nathan Denette
Prince William and Kate, the Duke and Duchess of Cambridge, pose for a photo with members of the Canadian Forces flight crew upon their arrival in Calgary, Alberta, on July 7, 2011.
AP Photo/The Canadian Press/Nathan Dentte
William and Kate, the Duke and Duchess of Cambridge, are presented white cowboy hats by Calgary Mayor Naheed Nenshi, right, and Alberta Lieutenant Governor Donald S. Ethell upon on their arrival to Calgary, Alberta, Canada, July 7, 2011.
AP Photo/The Canadian Press/Jonathan Hayward
Prince William and Kate, the Duke and Duchess of Cambridge, look towards a RCMP officer as they arrive in Calgary, Alberta, Canada, July 7, 2011.
AP Photo/The Canadian Press/Jonathan Hayward
Prince William and Kate, the Duke and Duchess of Cambridge, arrive in Calgary, Alberta, on July 7, 2011, as they continue their royal tour of Canada.
Chris Jackson/Getty Images
Prince William and Kate, the Duke and Duchess of Cambridge, arrive at Calgary Airport on July 7, 2011, in Yellowknife, Canada.
