Prairie Grouse: Species and Habitats for Birdwatchers

Prairie grouse are three closely related North American grassland birds in the genus Tympanuchus: the greater prairie-chicken, the lesser prairie-chicken and the sharp-tailed grouse. All three depend on wide, open grassland habitat with few trees. Each species fits a different kind of prairie. Greater prairie-chickens use tallgrass and mixed-grass prairie. Lesser prairie-chickens live in the drier sand sagebrush and shinnery oak grasslands of the southern Great Plains. Sharp-tailed grouse range farther north and west into brushy grasslands, shrub-steppe and openings in parkland and boreal country. This prairie grouse primer explains how to tell the species apart, what their habitat looks like through the seasons, and how to watch them patiently without disturbing them.

What are prairie grouse?

Prairie grouse are ground-dwelling grouse adapted to open grasslands, where males gather each spring on traditional display grounds called leks. A lek is a patch of ground, often on a slight rise or in short vegetation, where males display and females arrive to choose a mate. The same lek may be used year after year, which is one reason these birds are so tied to particular places.

The name prairie chickens refers specifically to the two Tympanuchus species with long neck feathers and bright inflatable air sacs: the greater prairie-chicken and the lesser prairie-chicken. The sharp-tailed grouse belongs to the same genus but is not called a prairie-chicken. In everyday wildlife-management language, the phrase prairie grouse is sometimes stretched to include sage-grouse, but in this article it means the three Tympanuchus species.

A few terms help when you start reading about these birds:

Pinnae: the elongated tufts of feathers on the sides of a prairie-chicken's neck. Males raise them like small horns during display.
Air sacs: bare patches of colored skin on the neck that males inflate while displaying. Their color is a useful identification clue.
Booming ground: a common name for a greater prairie-chicken lek, named after the low booming sound the males make.
Residual cover: standing grass left over from the previous growing season. Hens often rely on it to hide nests in spring.

Which prairie grouse species can you see?

Three prairie grouse species live in North America, and each occupies a different part of the continent's grasslands. Their ranges overlap in a few places, and hybrids are occasionally reported where two species share ground.

Greater prairie-chicken

The greater prairie-chicken (Tympanuchus cupido) is a stocky, brown, heavily barred grouse of tallgrass and mixed-grass prairie, especially in the central Great Plains and parts of the Midwest. Displaying males inflate yellow-orange air sacs, raise their dark pinnae, stamp their feet and produce a low, hollow booming that carries across the prairie in the stillness of dawn. Many observers compare the sound to blowing across the mouth of a bottle.

Two forms of the greater prairie-chicken are worth knowing. The Attwater's prairie-chicken, a subspecies of the coastal prairies of Texas, is endangered and the focus of long-running recovery work. The heath hen, an eastern subspecies, went extinct in the early 1930s. Its loss is often cited as a reminder of how fragile isolated grassland bird populations can be.

Lesser prairie-chicken

The lesser prairie-chicken (Tympanuchus pallidicinctus) is a smaller, somewhat paler relative of the greater prairie-chicken. It lives in the semi-arid southern Great Plains, mostly in sand sagebrush prairie, shinnery oak grassland and mixed-grass prairie. Males have reddish air sacs and give higher, bubbling or gobbling calls rather than a deep boom. The species is of serious conservation concern. Its federal legal status has changed through listing decisions and court actions, so check the current state and federal rules before planning a visit.

Sharp-tailed grouse

The sharp-tailed grouse (Tympanuchus phasianellus) has the widest range of the prairie grouse species. It reaches across the northern Great Plains, the Canadian prairies, parkland and boreal openings, Alaska and parts of the intermountain West. It is paler than the prairie-chickens. Its underparts are marked with V-shaped or scalloped spots rather than bars, and its pointed tail shows white along the sides. On the lek, males hold their wings out and tail up, stamp their feet rapidly and rattle their tail feathers. They also give cooing and cackling calls, and their violet-purple air sacs show during display. Sharp-tailed grouse often use brushier ground than prairie-chickens, including shrubby draws and the edges of aspen groves.

How do you tell prairie grouse species apart?

You can tell prairie grouse species apart by checking four features: tail shape, belly pattern, air-sac color and voice. Where you are standing helps just as much, because range and habitat narrow the possibilities before you even raise your binoculars. Females are duller than males and show little or no air-sac color, so tail shape and belly pattern are the most reliable clues for them.

Feature	Greater prairie-chicken	Lesser prairie-chicken	Sharp-tailed grouse
Overall look	Stocky, brown, heavily barred	Smaller and paler than the greater	Pale, speckled, lighter below
Belly pattern	Horizontal bars	Horizontal bars, often finer	V-shaped or scalloped spots
Tail	Short, rounded, dark	Short, rounded, dark	Pointed, with white outer feathers
Male air sacs	Yellow-orange	Reddish	Violet to purple
Pinnae	Long, raised in display	Long, raised in display	Absent
Display sound	Low, hollow booming	Higher bubbling or gobbling	Cooing, cackling, rapid foot-stamping rattle
Typical habitat	Tallgrass and mixed-grass prairie	Sand sagebrush and shinnery oak grassland	Mixed-grass prairie, brushy grassland, shrub-steppe, parkland edges

For example, a grouse flushing from a brushy draw in North Dakota and showing a pointed, white-edged tail is almost certainly a sharp-tailed grouse. A bird booming at dawn on a Kansas ridge with orange air sacs points to a greater prairie-chicken. In the few areas where two species meet, an odd-looking or odd-sounding male may be a hybrid. It is fine to write that down as uncertain rather than force a name.

What does prairie grouse habitat look like?

Prairie grouse habitat is large, open, mostly treeless grassland that offers a mix of vegetation heights across the year. Prairie grouse need short, open ground for display, taller cover for nesting, insect-rich patches for chicks and food and shelter for winter, all within reach of one another. A single uniform field rarely provides all of this. A healthy prairie is usually a patchwork shaped by grazing, fire and the varied growth of native grasses and wildflowers.

Prairie grouse generally avoid tall vertical structures such as trees, tree lines, buildings and power lines. These can serve as perches for hawks and owls, and they break up the open horizon the birds rely on to spot danger. When you scan a landscape for good prairie grouse habitat, look for long, unbroken sightlines.

Lek sites

Lek sites are open spots with short or sparse vegetation where displaying males can see and be seen. They are often on knolls, ridgetops, recently burned areas or grazed flats. When you notice a slightly raised, low-grass patch in the middle of broad grassland, you are looking at the kind of ground prairie grouse choose for leks.

Nesting cover

Nesting cover for prairie grouse is ground vegetation dense and tall enough to hide a hen on her ground nest. Residual grass from the previous year matters because spring growth may not yet be tall enough when nesting begins. Pastures grazed or mowed very short leave little residual cover. Ungrazed stands left for many years can become too thick or invaded by woody plants.

Brood-rearing areas

Brood-rearing areas are places where young prairie grouse chicks can find abundant insects and still move easily at ground level. These areas are often rich in wildflowers and other forbs, which attract the insects chicks eat in their first weeks. A canopy of cover overhead with room to walk underneath is the ideal structure for chicks.

Winter habitat

Winter habitat gives prairie grouse food and protection from cold and wind. Depending on the region, birds may feed on waste grain, seeds, buds and shrub fruits. Sharp-tailed grouse often feed on buds in trees and shrubs. Prairie grouse may also roost by burrowing into soft snow, which insulates them on bitter nights.

How do seasons change what you notice?

Prairie grouse behave very differently from season to season, so what you can observe depends on when you go.

Spring: Lek activity peaks in spring, roughly from March into May across much of the range. The timing varies with latitude and weather. This is the classic time to hear booming, gobbling or foot-stamping at dawn.
Late spring and summer: Hens nest and raise broods, and the birds become quiet and hard to find. This is a season to appreciate the habitat itself and keep distance from grassland where hens may be nesting.
Autumn: Young birds are grown, and some males return to leks for brief displays. Flocks may form as the season cools.
Winter: Prairie grouse gather in flocks, sometimes near food sources. You may see tracks in snow, snow-roost depressions or birds perched in shrubs and trees.

How can you watch prairie grouse leks respectfully?

The best way to watch prairie grouse on a lek is to arrive before dawn, stay hidden in a vehicle or blind and remain until the birds leave on their own. Disturbance during the breeding season can interrupt mating and may cause birds to abandon a lek. Many state and provincial agencies and conservation groups offer reservable viewing blinds, and these are a good first choice.

Find a sanctioned viewing site. Look for public viewing blinds or guided tours, and get permission before entering private land.
Prepare the night before. Pack warm layers, a hat and gloves, binoculars, a spotting scope if you have one, a quiet thermos and a notebook. Spring prairie dawns are often cold and windy.
Arrive in darkness. Plan to be settled well before first light, since birds often begin gathering before sunrise. Keep lights off or dim as you approach the blind.
Stay inside and stay quiet. Remain in the blind or vehicle, keep doors closed and avoid sudden movement or loud voices.
Wait until the birds leave. Leave only after the grouse have dispersed, usually in mid-morning, so you do not flush them from the lek.
Keep lek locations private. Do not post exact lek locations publicly. Share sightings with the agency or survey program that manages the site if it asks for reports.

What should you record in your prairie grouse field notes?

Good prairie grouse field notes record the conditions, the birds and the behaviors you observed, so you can compare visits across days and seasons. Useful entries include:

Date, place (described generally if the site is sensitive), arrival time and the time the first birds appeared
Sky conditions, wind and temperature, since wind and rain often reduce lek activity
Number of males and females, and which species you identified
Display behaviors such as booming, foot-stamping, tail-rattling, face-offs between males and flutter-jumps
Disturbances such as a hawk passing overhead, a vehicle or livestock, and how the birds responded
The time the birds left and the direction they flew
Notes on the habitat, including grass height, recent burns, grazing and any trees or structures nearby

Over a season or several years, notes like these can show you how lek activity rises and falls and how habitat changes affect what you see.

Why does prairie grouse habitat matter?

Prairie grouse habitat matters because these birds cannot persist without large, connected grasslands, and much of North America's native prairie has been lost or fragmented. The main pressures include conversion of grassland to cropland and development, spread of trees such as eastern redcedar into open prairie, new tall structures, and grazing or fire patterns that leave too little variety in vegetation height. Where landowners and agencies use prescribed fire, thoughtful grazing and tree removal to restore open, varied grassland, prairie grouse can benefit along with meadowlarks, sparrows and other grassland birds.

As a birdwatcher, you help by following site rules, keeping your distance during nesting season, protecting lek locations and supporting grassland conservation in your region. On your next outing, try spending a few quiet minutes reading the land itself. Look for open horizons, a low knoll with short grass and the tawny residual cover where a hen might nest. Recognizing good prairie grouse habitat is the first step toward finding the birds, and toward understanding why they belong there.