Lesser Prairie-ChickenTympanuchus pallidicinctus
16" (41 cm). A chicken-like bird, barred above and below with grayish brown, with short black tail. Courting male has long black feathers on sides of neck that form erect "horns"; inflates reddish-purple air sacs during courtship display. Horns of female shorter. Greater Prairie-Chicken of plains farther east is similar but larger and more strongly barred, with yellow-orange air sacs.