Western North America, from central Washington, south-eastern Alberta, south-western Saskatchewan and south-western North Dakota, south to eastern California, Nevada, Utah and western Colorado. Formerly also in extreme southern British Columbia, northern New Mexico and extreme north-western Oklahoma.
 
Population
Estimated population is 150,000 (2010) and decreasing.
Status NT
Habitat destruction and degradation through clearance and conversion to agriculture are the main threats.
For more information see BirdLife International Species Factsheet.
Sage Grouse (Centrocercus urophasianus) [XC313520]
by Frank Lambert from Grouse lek, Jackson County, Colorado, United States (song)
Sage Grouse (Centrocercus urophasianus) [XC220693]
by Frank Lambert from Walden, CO, United States (lek sounds)
Subspecies
Centrocercus urophasianus (Sibley and Monroe 1990, 1993) has been split into Greater Sage-Grouse (Centrocercus urophasianus) and Gunnison Grouse (Centrocercus minimus) following AOU (1998).
Known to have hybridized occasionally with Sharp-tailed Grouse (Tympanuchus phasianellus), and once with Blue Grouse (Dendragapus obscurus). Populations of north-west, from Washington to Oregon, sometimes awarded separate subspecies, phaios.