Geographic Range
Lesser prairie-chickens (
Tympanuchus pallidicinctus
) occupy high plains regions of southeastern Colorado, western Kansas and Oklahoma,
eastern New Mexico, and the Texas panhandle. Historically, the territory covered by
lesser prairie-chickens was significantly larger. There is some ambiguity in identifying
their exact ranges, as there was likely confusion by early settlers between the
greater
and lesser prairie-chickens. However, remains positively identified as lesser prairie-chickens
have been reported as far west as Oregon.
- Other Geographic Terms
- holarctic
Habitat
Lesser prairie-chickens inhabit the high plains ecosystem. Their preferred habitats
include shrubs, either
shinnery oaks
or
sand sagebrushes
, mixed alongside tall grasses, usually bluegrasses, and sandy soil. This foliage
aggregation is necessary for concealment from aerial and terrestrial predators and
shade during the summer. Additionally, the foliage provides sustenance for lesser
prairie-chickens and the insects they feed on. During breeding periods, males form
leks in areas that are less obscured by shrubs and taller grasses in order to maximize
visibility for mating displays.
- Habitat Regions
- temperate
- terrestrial
- Terrestrial Biomes
- savanna or grassland
Physical Description
Lesser prairie-chickens are rotund, neutrally colored ground-dwelling birds, weighing
around 700 to 800 grams. They are usually between 38 and 41 centimeters in length,
with a short tail. Lesser prairie-chickens display a range of camouflaging tints from
grey to brown, paler in the breast, with heavy barring in the plumage. Males are distinguished
by yellow eye combs accompanied by prominent pinnae (long decorative feathers) that
become erect while displaying, and red esophageal air sacs on the neck.
- Other Physical Features
- endothermic
- bilateral symmetry
- polymorphic
- Sexual Dimorphism
- male more colorful
- ornamentation
Reproduction
Lesser prairie-chickens display classic lekking behavior. Males congregate in the
spring and fall in areas with increased visibility and vie for position within the
lek. Aggressive displays involve a semi-prone position, wings spread slightly from
the sides, erect pinnae and tail, and inflated air sacs. Occasionally these displays
may lead to actual fights. Dominant males tend to occupy the center of the lek and
obtain a disproportionately high percentage of successful copulations. Once territories
are established, displaying begins, occurring at sunrise and sunset. The cocks call
out to the females, dance, and continue to make aggressive gestures towards other
males. Females select males based on activity and vocal ability.
- Mating System
- polygynous
Lesser prairie-chickens breed in the springtime, although males display in lekking
sites in the fall as well. This may be related to establishing lekking positions for
the following spring. Male lesser prairie-chickens demonstrate territorial fidelity
within leks over multiple mating seasons. Despite fragmentation of populations by
land development, genetic diversity is maintained, even with a loss of approximately
97% of their historic population sizes. This genetic fluidity is likely maintained
by females leaving the lekking ground where they were inseminated and seeking favorable
nesting conditions near other lekking grounds.
- Key Reproductive Features
- iteroparous
- seasonal breeding
- gonochoric/gonochoristic/dioecious (sexes separate)
- sexual
- oviparous
After mating, females leave the lek in search of a suitable nesting spot. Nesting
areas are selected primarily based on horizontal and vertical coverage, and other
attributes such as litter availability, and proximity to other lekking sites. Clutch
sizes range from 6 to 14 eggs. The eggs are buff to cream colored, with fine speckling
that can be olive to pale brown, sometimes including lavender markings. Eggs are incubated
for approximately three weeks before hatching. Juveniles become independent at 12
to 15 weeks. Females that are unsuccessful with their first nest may attempt a second
one in the same breeding season. Aside from being flamboyant showoffs, the males contribute
very little beyond genetic material towards raising the next generation.
- Parental Investment
- female parental care
-
pre-hatching/birth
-
provisioning
- female
-
protecting
- female
-
provisioning
-
pre-weaning/fledging
-
provisioning
- female
-
protecting
- female
-
provisioning
-
pre-independence
-
provisioning
- female
-
protecting
- female
-
provisioning
Lifespan/Longevity
Lesser prairie-chickens do not generally have extended lifespans. As many as 65% of
these birds expire in the first year alone, with only a small segment of the population
reaching the estimated maximum lifespan of five years. The high mortality rate is
influenced by predators and collisions with man-made obstacles such as fences and
power lines.
Behavior
Lesser prairie-chickens are non-migratory
gallinaceous
birds inhabiting the arid high plains of Colorado, Kansas, Oklahoma, Texas, and New
Mexico. These ground dwelling birds use the native grasses and shrubs of this ecosystem
for both food and cover year round. Lesser prairie-chickens require shrubs for protection
in the nesting season and shading in the summer. In the winter months when temperatures
become extreme, these birds will burrow in the snow for shelter. Their most notable
habit occurs during the spring and fall when males gather in leks to display for females,
using calls and dancing to attract them. In addition to these shows, males will make
aggressive displays towards each other, establishing territories within the lek. Aggressive
behaviors include ritual postures, short flights, pursuit of other males, and fighting.
Dominant males and females are known to establish themselves amongst their own sex
through the use of violence.
- Key Behaviors
- terricolous
- flies
- diurnal
- motile
- sedentary
- dominance hierarchies
Home Range
Home ranges for lesser prairie-chickens can reach 5 kilometers squared for males,
while females can occupy up to 2.3 kilometers squared. Fragmentation of native habitats
by farming and man-made structures has put considerable stress on the ranges of these
birds.
Communication and Perception
While lekking, males use visual cues to attract mates, erecting their pinnae, flaring
eye combs, and inflating esophageal sacs, all while taking aggressive stances towards
other cocks. They also entice females with auditory signals. Lesser prairie-chickens
utilize visual and auditory perception to interpret their surroundings.
- Communication Channels
- acoustic
Food Habits
Lesser prairie-chickens feed on insects like grasshoppers and beetles, and also consume
the greenery and seeds of the many grasses and shrubs in their ecosystem. Dependence
on each food type varies throughout the year, based on availability. Lesser prairie-chickens
gather in flocks during the fall and winter, relying on row grains and acorn masts
for foraging.
- Animal Foods
- insects
- Plant Foods
- leaves
- seeds, grains, and nuts
Predation
Raptors like
red-tailed hawks
and mammals such as
coyotes
,
bobcats
,
foxes
and
skunks
are the primary predators of lesser prairie-chickens. Developed areas can increase
predation, as terrestrial predators follow fences and roads, and fences and power
lines provide additional roosting places for aerial predators. Lesser prairie-chickens
rely on camouflage for protection and hide among shrubs and tall grasses for cover.
They will studiously avoid tall structures, as these can be roosts for raptors.
- Anti-predator Adaptations
- cryptic
Ecosystem Roles
This species forages heavily on insects, keeping their numbers in check. Lesser prairie-chickens
also support several predator species.
Ring-necked pheasants
have been observed parasitizing nests and interrupting leks. Nests have also been
observed to contain quail eggs. Lesser prairie-chickens may also host several parasite
species.
- Ecosystem Impact
- disperses seeds
- ring-necked pheasants ( Phasianus colchicus )
- eye worms ( Oxyspirura petrowi )
- nematodes ( Tetrameres )
- nematodes ( Subulura )
- parasitic protozoa ( Plasmodium pedioecetti )
- Apicomplexa ( Eimeria tympanuchi )
Economic Importance for Humans: Positive
Lesser prairie-chickens are an important source of tourism for communities in and
around their range. Their highly visible courtship displays attract bird enthusiasts
and artists. Hunters also travel to these regions, attracted by the unusual and colorful
trappings of the males.
- Positive Impacts
- ecotourism
- research and education
- controls pest population
Economic Importance for Humans: Negative
Because these birds avoid tall structures, even at the cost of lost breeding grounds,
energy industries like oil and wind stand to lose access to profitable minerals and
other natural resources that are in areas occupied by lesser prairie-chickens.
Conservation Status
Lesser prairie-chickens are considered vulnerable and benefit from management programs
at the state level. Populations in Kansas are considered fairly stable, while in Oklahoma,
Texas, and New Mexico they continue to decline. Sport hunting is still permitted in
regions of Kansas, but not in other states. Fence and power line markers are utilized
in some areas to reduce the number of collision related fatalities.
Additional Links
Contributors
Jeremiah Muldowney (author), University of Wyoming, Hayley Lanier (editor), University of Wyoming - Casper, Leila Siciliano Martina (editor), Texas State University.
- Nearctic
-
living in the Nearctic biogeographic province, the northern part of the New World. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.
- native range
-
the area in which the animal is naturally found, the region in which it is endemic.
- holarctic
-
a distribution that more or less circles the Arctic, so occurring in both the Nearctic and Palearctic biogeographic regions.
Found in northern North America and northern Europe or Asia.
- temperate
-
that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).
- terrestrial
-
Living on the ground.
- tropical savanna and grassland
-
A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.
- savanna
-
A grassland with scattered trees or scattered clumps of trees, a type of community intermediate between grassland and forest. See also Tropical savanna and grassland biome.
- temperate grassland
-
A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.
- endothermic
-
animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.
- bilateral symmetry
-
having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.
- polymorphic
-
"many forms." A species is polymorphic if its individuals can be divided into two or more easily recognized groups, based on structure, color, or other similar characteristics. The term only applies when the distinct groups can be found in the same area; graded or clinal variation throughout the range of a species (e.g. a north-to-south decrease in size) is not polymorphism. Polymorphic characteristics may be inherited because the differences have a genetic basis, or they may be the result of environmental influences. We do not consider sexual differences (i.e. sexual dimorphism), seasonal changes (e.g. change in fur color), or age-related changes to be polymorphic. Polymorphism in a local population can be an adaptation to prevent density-dependent predation, where predators preferentially prey on the most common morph.
- sexual ornamentation
-
one of the sexes (usually males) has special physical structures used in courting the other sex or fighting the same sex. For example: antlers, elongated tails, special spurs.
- polygynous
-
having more than one female as a mate at one time
- iteroparous
-
offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).
- seasonal breeding
-
breeding is confined to a particular season
- sexual
-
reproduction that includes combining the genetic contribution of two individuals, a male and a female
- oviparous
-
reproduction in which eggs are released by the female; development of offspring occurs outside the mother's body.
- female parental care
-
parental care is carried out by females
- diurnal
-
- active during the day, 2. lasting for one day.
- motile
-
having the capacity to move from one place to another.
- sedentary
-
remains in the same area
- dominance hierarchies
-
ranking system or pecking order among members of a long-term social group, where dominance status affects access to resources or mates
- acoustic
-
uses sound to communicate
- cryptic
-
having markings, coloration, shapes, or other features that cause an animal to be camouflaged in its natural environment; being difficult to see or otherwise detect.
- ecotourism
-
humans benefit economically by promoting tourism that focuses on the appreciation of natural areas or animals. Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals.
- threatened
-
The term is used in the 1994 IUCN Red List of Threatened Animals to refer collectively to species categorized as Endangered (E), Vulnerable (V), Rare (R), Indeterminate (I), or Insufficiently Known (K) and in the 1996 IUCN Red List of Threatened Animals to refer collectively to species categorized as Critically Endangered (CR), Endangered (EN), or Vulnerable (VU).
- carnivore
-
an animal that mainly eats meat
- insectivore
-
An animal that eats mainly insects or spiders.
- herbivore
-
An animal that eats mainly plants or parts of plants.
- folivore
-
an animal that mainly eats leaves.
- granivore
-
an animal that mainly eats seeds
- omnivore
-
an animal that mainly eats all kinds of things, including plants and animals
- visual
-
uses sight to communicate
- tactile
-
uses touch to communicate
- acoustic
-
uses sound to communicate
- chemical
-
uses smells or other chemicals to communicate
References
Behney, A., B. Grisham, C. Boal, H. Whitlaw, D. Haukos. 2012. Sexual selection and mating chronology of Lesser Prairie-Chickens. The Wilson Journal of Ornithology , 124: 96-105.
Clapp, R., M. Klimkiewicz, J. Kennard. 1982. Longevity records of North American birds: Gaviidae through Alcidae . Journal of Field Ornithology , 53/2: 81-124.
Coomansingh, J. 2010. Resource characteristics of the Lesser Prairie-chicken ( Tympanuchus pallidicinctus ) and its survival on the High Plains of the United States. Prairie Perspectives: Geographical Essays , 13: 49-57.
Davis, D. 2009. Nesting ecology and reproductive success of Lesser Prairie-Chickens in shinnery oak-dominated rangelands. The Wilson Journal of Ornithology , 121: 322-327.
Hagen, C., K. Giesen. 2013. "Lesser Prairie-Chicken ( Tympanuchus pallidicinctus )" (On-line). The Birds of North America Online. Accessed December 13, 2013 at http://bna.birds.cornell.edu/bna/species/364 .
Holt, D., M. Butler, W. Ballard, C. Kukal, H. Whitlaw. 2010. Disturbance of lekking Lesser Prairie-Chickens ( Tympanachus pallidicinctus ) by Ring-Necked Pheasants ( Phasianus colchicus ). Western North American Naturalist , 70: 241-244.
Robel, R., T. Walker, C. Hagen, R. Ridley, K. Kemp, R. Applegate. 2003. Helminth parasites of lesser prairie-chicken Tympanuchus pallidicinctus in southwestern Kansas: incidence, burdens and effects. Wildlife Biology , 9/4: 341-349.
Snyder, S. 1992. " Tympanuchus cupido , T. pallidicinctus " (On-line). Fire Effects Information System. Accessed November 28, 2013 at http://www.fs.fed.us/database/feis/animals/bird/tymp/introductory.html .
Sullivan, R., J. Hughs, J. Lionberger. 2000. Review of the historical and present status of the Lesser Prairie-chicken ( Tympanuchus pallidicinctus ) in Texas. The Prairie Naturalist , 32: 177-188.
Van Den Bussche, R., S. Hoofer, D. Wiedenfeld, D. Wolfe, S. Sherrod. 2003. Genetic variation within and among fragmented populations of Lesser Prairie-Chickens ( Tympanuchus pallidicinctus ). Molecular Ecology , 12: 675-683.
Wolfe, D., M. Patten, E. Shochat, C. Pruett, S. Sherrod. 2007. Causes and patterns of mortality in Lesser Prairie-Chickens Tympanuchus pallidicinctus and implications for management. Wildlife Biology , 13: 95-104.
Woodward, A., S. Fuhlendorf, D. Leslie Jr., J. Shackford. 2001. Influence of landscape composition and change on lesser prairie-chicken ( Tympanuchus pallidicinctus ) populations. American Midland Naturalist , 145/2: 261-274.