Large turkeylike bird found only in extensive areas of sagebrush. Both sexes gray overall with very fine patterning, black belly, and long pointed tail. Males have white breast and black throat. Spectacular male display involves fanning tail, inflating yellow air sacs on chest, and thrusting them forward to produce liquid popping noises. Most easily seen at display sites in early spring; can be very inconspicuous at other times of year. Population in severe decline due to habitat destruction.