REGAL

Sandhill Cranes (Grus canadensis); the most common North American crane but still not really common.  I have seen them in the hundreds of thousands along the Platte River in Nebraska.  The sound is deafening.  Large birds can have a wingspan between 5 and 7+ feet.  
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This is a pair of adults as evidenced by the reddish tops of their heads. Juveniles, almost as tall as the parent birds, will not have this scarlet top.
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This duo was strolling some farm fields in search of lunch.  They'll take whatever they can find but are largely herbivores and seed eaters.  Northern sub-species will also feed on berries, small mammals, insects, snails, reptiles and amphibians.