Sharp-tailed grouse (Tympanuchus phasianellus) (previously Tetrao phasianellus), Custer State Park, South Dakota, United States of America, North America

Sharp-tailed grouse (Tympanuchus phasianellus, previously Tetrao phasianellus), Custer State Park, South Dakota, United States of America, North America

Sharp-tailed grouse (Tympanuchus phasianellus, previously Tetrao phasianellus), Custer State Park, South Dakota, United States of America, North America

Lesser Prairie-Chicken (Tympanuchus pallidicinctus), male displaying in prairie, vocal sac inflated, Canadian, Panhandle, Texas, USA

Lesser Prairie-Chicken (Tympanuchus pallidicinctus), males displaying, Panhandle, North Texas, USA

Male Sharp-Tailed Grouse Struts During Spring Mating Dance, Interior Alaska

Male Sharp-Tailed Grouse Struts During Spring Mating Dance, Interior Alaska

Male Sharp-Tailed Grouse (Tympanuchus Phasianellus) In Spring During Mating Dance, Alberta, Canada