Cheryl-Samantha Owen / Aaron Price riding his horse 'Beau' over his Ranch, Gracie Creek, Sandhills, Nebraska. Garfield County, Nebraska, USA. October 2014.

Cheryl-Samantha Owen / Lynn Ballagh closing gate on his cattle ranch, Sandhills of Nebraska, Garfield County, Nebraska, USA.

Charlie Summers / 'Carhenge', a sculpture tribute to Stonehenge of Wiltshire, UK. Built from cars in 1987 by Jim Reinders. Nebraska, November 2011.

David Tipling / Two male Greater prairie chickens (Tympanuchus cupido) fighting on lekking ground in the Sandhills, Nebraska. USA, April

TOM MANGELSEN / Siberian Tiger cub orphan (Panthera tigris altaica) Omaha Zoo, Nebraska

Jim Brandenburg / American Bison (Bison bison) pair grazing on prairie under an anvil cloud, Nebraska

Mark Payne-Gill / Sandhill cranes landing in field Platte river Nebraska USA {Grus canadensis} . march

Marie Read / Abstract interpretation of Sandhill Cranes (Grus canadensis) at roost during spring migration in March, Rowe Sanctuary, Kearney, Nebraska, USA. March. Long exposure.

Gerrit Vyn / Sandhill Cranes (Grus canadensis) roosting in the Platte River during their northward spring migration. Central Nebraska. March.

Gerrit Vyn / Sandhill Cranes (Grus canadensis) flying to their roost on the Platte River during their northward spring migration. Central Nebraska. March.

Gerrit Vyn / Sandhill Cranes (Grus canadensis) feeding in agricultural fiields during migration. Central Nebraska, USA, March.

Gerrit Vyn / Sandhill Cranes (Grus canadensis) feeding in agricultural fiields during migration. Central Nebraska, USA. March.