Genus Centrocercus, also known as sage-grouse, is a species of bird that belongs to the family Phasianidae. They are large, ground-dwelling birds that are found in North America. Synonyms for Genus Centrocercus include sage-hen, sagecock, and cock of the plains. These birds are known for their elaborate courtship displays where the males puff out their chests and spread their tail feathers in an attempt to attract females. They are also notable for their reliance on sagebrush habitats for food and shelter. Sage-grouse populations have been declining due to habitat loss, and measures are being taken to conserve this important species.