sage grouse, sagegrouse, grouse, grouses, sage grouses, Centrocercus urophasianus, male, horizontal, displaying, display, mating, territorial, behavior, horizontal, bird, birds, gamebird, wildlife, fauna, one, single, individual, lek, Oregon, Great Basin, high desert, strut, strutting, dawn, morning, Tom, Pat, Leeson, and, photo, photos, photograph, photographs, image, images, picture, pictures, stock, of, agency, leesonphoto