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 .
- 1. American Ornithologists' Union. 1983. Checklist of North American birds. 6th ed. Lawrence, KS: Allen Press, Inc. 877 p. 
- 66. Johnsgard, Paul A. 1983. The grouse of the world. Lincoln, NE: University of Nebraska. 413 p. 
- 87. National Geographic Society. 1987. Field guide to the birds of North America. 2nd ed. Washington, DC: The National Geographic Society. 464 p. 
- 2. American Ornithologists' Union. 2000. Forty-second supplement to the American Ornithologists' Union check-list of North American birds. The Auk. 117(3): 847-858. 
- 44. Eng, Robert L. 1971. Two hybrid sage grouse x sharp-tailed grouse from central Montana. Condor. 73(4): 491-493. 
- 62. Hjertaas, Dale G. 1995. Observations of hybrid sage X sharp-tailed grouse in Saskatchewan. Blue Jay. 53(3): 144-147. 
- 78. Kohn, Stanley C.; Kobriger, Gerald D. 1986. Occurrence of a sage grouse/sharp-tailed grouse hybrid in North Dakota. Prairie Naturalist. 18(1): 33-36. 
- 101. Rensel, Jack A.; White, Clayton M. 1988. First description of hybrid blue x sage grouse. Condor. 90(3): 716-717. 
- 26. Colorado Division of Wildlife. 2002. Colorado listing of endangered, threatened and wildlife species of special concern, [Online]. Available: http://wildlife.state.co.us/T&E/list.asp [2002, February 25]. 
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