The scientific name for the genus of sage-grouse is Centrocercus.
Within this genus are 2 species: the Gunnison sage-grouse,
Centrocercus minimus Bradbury and Vehrencamp, and the greater sage-grouse,
Centrocercus urophasianus (Bonaparte) . The greater sage-grouse has
2 recognized subspecies: the eastern sage-grouse,
Centrocercus urophasianus ssp. urophasianus, and the western sage-grouse,
Centrocercus urophasianus ssp. phaios Aldrich . Sage-grouse are
members of the family Phasianidae .
In this report "sage-grouse" refers to both greater
sage-grouse and Gunnison sage-grouse. Where the literature refers to a
subspecies of greater sage-grouse or to Gunnison sage-grouse, they will be
identified as such.
There is no evidence that the 2 species of sage-grouse interbreed
, but sage-grouse do rarely hybridize with both sharp-tailed grouse
(Tympanuchus phasianellus) and dusky grouse (Dendragapus obscurus) .
Hybrids of sharp-tailed grouse and greater sage-grouse have been found in
Montana , Saskatchewan , and North Dakota . A hybrid of dusky grouse
and sage-grouse was found in Utah .
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