The greater prairie-chicken is a medium-sized grouse with a barred plumage; it has a short round tail, feathered toes and narrow elongated feathers on an inflatable orange sac found on both sides of the neck; these narrow elongated feathers are poorly developed on the females. Males fill orange sacs and raise side feathers into horns during courtship displays.

Listen to courting prairie chickens!
(Sound clip courtesy Lang Elliot/NatureSound Studio)