This data release contains four datasets that represent data collected for a study that determined locations of leks of Sharp-tailed Grouse (Tympanuchus phasianellus) and Greater Prairie-Chicken (Tympanuchus cupido), and counts of birds on those leks, in native mixed-grass prairie from 2003 to 2014 (excluding 2004) at and adjacent to seven wind facilities in North Dakota and South Dakota, USA. The four datasets contain discrete topics of information: 1) geographic locations of roadside survey stops for the purpose of locating leks, 2) geographic locations of leks, 3) roadside survey and lek-count data of the number of birds on leks, and 4) and a table that indicates in what years roadside surveys and lek counts were conducted for each wind facility.