Adult whooping cranes are white with a red crown and a long, dark, pointed bill (immatures are brown in colour). They are the tallest birds native to North America with a height of 1.5 m, about half of which is legs which the cranes use to wade into deeper water to find food.
Photo taken at the Calgary Zoo, Calgary, Alberta, Canada.
Canon EOS DIGITAL REBEL XSi
1/640 at f/4