Coop is portrayed by a person dressed in a prairie chicken costume. The Hamerstroms focused on the habitat needs of the greater prairie chicken. The lek is often closed due to the decline of the prairie chicken population. The Hamerstroms are credited by naturalists for saving the prairie chicken from extirpation in Wisconsin. "Kewanee" is the Winnebago word for greater prairie chicken, which lived there. Some of this wildlife includes the rhea, the badger, and the prairie chicken. It is known as the "Prairie Chicken Capital of the World". Wild turkey, grouse, prairie chicken, quail, and duck were all found in abundance. Animals hunted include whitetail deer, pronghorn, prairie chicken, quail, pheasant, prairie dog and jack rabbit. Currently the greater prairie chicken is experiencing low reproductive success. The greater prairie chicken is currently experiencing low reproductive success. Birds include the Lesser Prairie Chicken, greater prairie chicken, dickcissel and loggerhead shrike. In Illinois alone, in the 1800s the prairie chicken numbered in the millions. The only publicly accessible lesser prairie chicken lek (display ground) in Colorado. The lesser prairie chicken ("Tympanuchus pallidicinctus") is a species in the grouse family.