Sandhill Cranes with a Canada Goose for size comparison.  The Greater Sandhill Crane stands about 4 feet tall, while the Lesser Sandhill Crane is somewhat smaller.  Both the Lesser and Greater are found in the Platte River area of Nebraska.  The vast majority of the Sandhill Cranes in Minnesota and Wisconsin are of the Greater variety.  They have a 6-7 foot wingspan and their long neck enables them to make a loud chatter-like call that can be heard for over a mile.