the sandhill & whooping cranes ;)

The Whooping Crane (Grus americana),

 is the tallest North American bird. the whooping crane is an endangered crane species the bird is named for its whooping sound.

 the adult whooping cranes are white with a red crown and a long dark pointed bill immature whooping cranes are pale brown.

The whooping crane was declared endangered in 1967. Attempts have been made to establish other breeding populations in captivity.

The Sandhill Crane (Grus canadensis)

 is a large crane of North America and extreme northeastern Siberia. The common name of this bird is like the Platte River, on the edge of Nebraska's Sandhills in the American Midwest. This is the most important stopover area for the Lesser Sandhill Crane (Grus canadensis canadensis), with up to 450,000 of these birds migrating through annually.

in the toop of his head is red when they are adults but when they are young  doesnt have it.

The sandhill crane's large which is 6–8 feet when fully grown, makes this a very skilled soaring bird similar in style to hawks and eagles.