Vídeo em HD maior Tetraz-cauda-de-faisão selvagem exibição na Colorado lek - Vídeo de acervo HD

At sunrise after a snow storm, displaying male greater sage grouse strut and inflate their air sacs on their chest and release it with a "pop" around nearby females or hens during the annual mating ritual on a sagebrush covered lek on the plains of Colorado's Arapahoe National Wildlife Refuge. It is the largest grouse in North America and is threatened as its range has been greatly reduced.