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WatchList Species Account for Lesser Prairie-Chicken (Tympanuchus
pallidicinctus)
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| Photo: USFWS |
Less widespread and less common than the
closely-related Greater Prairie-Chicken, the Lesser Prairie-Chicken
is found only in the U.S. It has declined dramatically to
only a fraction of its former numbers because of plowing and
overgrazing of the prairie, though excessive market hunting
also played a role; its numbers are still diminishing and
it a now inhabits less than 10% of its historic range. Its
present range includes small parts of five states: southwestern
Kansas, southeastern Colorado, eastern New Mexico and parts
of the panhandles of Oklahoma and Texas. Its preferred habitat
is sand sagebrush-bluestem and shinnery oak-bluestem grasslands.
Each spring the males gather at leks to perform their courtship
dances to attract mates. The same sites are used year after
year. The peak display period is from mid-March to mid-May
. At some sites a lek may have as many as 40 males. During
courtship the male inflates the reddish-purple sacs on its
neck and emits a booming sound that can be heard up to a mile
away.
The bird needs a habitat with a mosaic
of bunchgrass and open ground. In the winter, the bunchgrass
dies and falls over, creating a canopy for hens to nest. Once
the chicks have hatched, they need both bunchgrass and open
ground where they can forage for insects. Population is limited
by the fact that there is not enough residual cover for nesting
hens; reduced cover can result from grazing and from oil and
gas development, both among the multiple uses on the grassland.
Weather is an important factor in breeding success of the
birds; a lack of rain at the right times of year can severely
impact the amount of suitable habitat.
In Kansas and Texas there is a limited
hunting season on Lesser Prairie-Chicken, though hunting pressure
is not intense. Under active management such as exists on
some federal lands the bird has increased its numbers at some
sites in the last few years. The five states where the bird
still exists have cooperated to develop a management plan
for the species.
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