The greater sage-grouse (hereafter sage-grouse) are a large ground dwelling bird. They can be up to 30 inches long and two feet tall, weighing from two to seven pounds. Females are mottled brown, black, and white which serves as camouflage from predators. Males are larger and more colorful than females with white feathers around the neck and bright yellow air sacs on their breast, which they inflate during their mating display. The birds occur at elevations ranging from 4,000 to over 9,000 feet and are dependent on sagebrush for cover and food.