Greater Prairie-Chicken

Overview

The Greater Prairie-Chicken is a grouse of native prairie grasslands in the central United States, historically abundant across the tallgrass prairie region. Males gather on traditional booming grounds each spring, inflating orange air sacs on the neck and raising long feather plumes (pinnae) while stamping their feet in a distinctive courtship display.

Feather Identification

• Body feathers: densely barred in alternating brown and buff bands across the back, breast, and flanks, providing camouflage in grass
• Pinnae feathers: males have elongated, pointed feathers on the sides of the neck that can be raised upright like small horns during display
• Tail feathers: short, dark, and rounded, contrasting with the heavily barred body feathers; lacks the pointed shape seen in sage-grouse
• Vs. Lesser Prairie-Chicken: Greater Prairie-Chicken feathers are larger overall with slightly darker, bolder barring, and the male's pinnae are proportionately longer
• Underwing: barred brown and buff, consistent with the body pattern

Plumage Notes

Both sexes show the same heavily barred brown-and-buff pattern, but males are larger and possess elongated pinnae feathers on the neck along with bare orange-yellow skin patches (air sacs) that inflate during display. Females lack the pinnae and are more uniformly barred. Juveniles resemble adult females. A single annual molt follows the breeding season.

Habitat & Range

Greater Prairie-Chickens are tied closely to native tallgrass and mixed-grass prairie in the central United States, though remaining populations are now fragmented due to conversion of grassland to agriculture. They are non-migratory residents that depend on large, contiguous grassland tracts for booming grounds, nesting, and winter cover.

Behavior & Field Notes

Males gather at communal booming grounds at dawn, inflating orange air sacs while producing a low, hollow booming sound, stamping their feet, and raising neck pinnae in dramatic display. Diet consists of seeds, grain, leaves, and insects, varying seasonally. Nests are shallow depressions concealed in tall grass. The species is often first noticed by the male's booming calls carrying across open prairie at dawn during the breeding season.