Columbian Sharp-tailed Grouse (Tympanuchus phasianellus columnianus) and Sage Grouse (Centrocercus urophasianus) leks were compared in an area of sympatry in south central Wyoming. Sharp-tailed Grouse leks had more (P < .05) shrub cover, taller shrubs, more forb, grass, and shrub species, and less visibility than did Sage Grouse leks. Reduction in shrub cover or the diversity of herbaceous species could potentially have greater influence on the use of lek sites by Columbian Sharp-tailed Grouse than by Sage Grouse in areas of sympatry in Wyoming.
Klott, James H. and Lindzey, Frederick G.
"Comparison of Sage and Sharp-tailed Grouse leks in south central Wyoming,"
Great Basin Naturalist: Vol. 49
, Article 15.
Available at: http://scholarsarchive.byu.edu/gbn/vol49/iss2/15