Alberta Premier Rachel Notley hugs her horse Splash before riding in the Calgary Stampede parade in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KE7T

Ty Taypotat of Regina, Saskatchewan, rides the horse Double Dippin' in the bareback event during the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KERV

First Responders from Fort McMurray march in the Calgary Stampede parade thanking Albertans for their support during the Fort McMurray fires in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KE7O

Jason Kenney who announced he will be seeking the leadership of the Alberta PC party waves his hat during the Calgary Stampede parade in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KE98

First responder Jerry Neville (L) lifts the arm of Fort McMurray ?Regional Fire Chief Darby Allen as people cheer for the first responders of the massive Fort McMurray fires during the Calgary Stampede parade in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KE37

Calgary Mayor Naheed Nenshi rides his horse during the Calgary Stampede parade in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KE97

Tyler Waguespack of Gonzales, Louisiana, wrestles a steer in the steer wrestling event during the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KET9

A view of some best seats in the house remaining empty on the first day of the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KEX7

Rhett Fox of Redig, South Dakota, gets bucked off the horse C Z8 in the novice saddle bronc event during the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KER4

Taylor Jacob of Carmine, Texas, races in the barrel racing event during the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KEUB

A Stampede ranch girl carries the Canadian flag during the national anthem at the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KETD

Tanner Girletz of Bowden, Alberta, gets thrown off the the bull Gangster Code in the bull riding event during the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KEV0

Doug Rogers rides his bull Wild West Willie during the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KE7Q

Ryle Smith of Oakdale, California, flips a calf in the tie-down roping event during the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KER6

Alberta Premier Rachel Motley (L) takes a selfie with Calgary Mayor Naheed Nenshi as the they ride their horses during the Calgary Stampede parade in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KE35

Members of the Royal Canadian Mounted Police march during the Calgary Stampede parade in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KE74

Tanner Milan of Cochrane, Alberta, wrestles a steer in the steer wrestling event during the Calgary Stampede rodeo in Calgary, Alberta, Canada July 8, 2016. REUTERS/Todd Korol - RTX2KES8