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Topic: Bighorn Sheep

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  Bighorn Sheep - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-07)
Bighorn Sheep are named for the large, curved horns borne by the males, or rams.
Bighorn Sheep population trends have been upward since the 1960s when their population was estimated at 6,700-8,100.
Bighorn Sheep appear to have occupied all the mountains in southwest Texas west of the Pecos River.
encyclopedia.worldsearch.com /bighorn_sheep.htm   (1723 words)

 Bighorn Sheep - Wikipedia, the free encyclopedia
Wild sheep crossed the Bering land bridge from Siberia during the Pleistocene and, subsequently, spread through western North America as far south as Baja California and northern mainland Mexico (Cowan 1940).
Bighorn sheep were amongst the most admired animals of the Apsaalooka, or Crow, people, and what is today called the Bighorn Mountain Range was central to the Apsaalooka tribal lands.
Bighorn sheep graze on grasses and browse shrubby plants, particularly in fall and winter, and seek minerals at natural salt licks.
en.wikipedia.org /wiki/Bighorn_Sheep   (741 words)

 Rocky Mountain Bighorn Sheep
The Rocky Mountain bighorns are in the class Mammalia (mammals).
Bighorns prefer to live in the wilderness areas because they are well away from people.
Bighorns spend their summers high up in the mountains and then when winter snow comes, they move down into the valleys.
lsb.syr.edu /projects/cyberzoo/bighornsheep.html   (541 words)

 Bighorn sheep facts
The two subspecies of bighorn sheep are Rocky Mountain bighorn, which occur in the Canadian Rockies, and the smaller California bighorn sheep that inhabit the arid ranges of south-central British Columbia.
Bighorn sheep are found in somewhat isolated pockets of the Rocky Mountains from southern Canada to Colorado, with a desert subspecies (Ovis canadensis nelsoni) also found from Nevada and California to west Texas and south into Mexico.
Bighorn sheep are best known for the head-to-head combat between males in the mating season to gain access to females.
www.canadiangeographic.ca /Magazine/ND02/Etcetera/facts.asp   (1620 words)

 Desert Bighorn Sheep of Cabeza Prieta NWR
Bighorn rely on their keen eyesight to detect potential predators such as mountain lions, coyotes, and bobcats, and they use their climbing ability to escape.
Activities that influence bighorn sheep numbers include disturbance from a wide variety of sources: hunting and other recreational use of habitat, poaching, and habitat fragmentation and encroachment caused by roads, fences, mining, and military and recreational activities.
All have contributed to a desert bighorn sheep population we believe is similar to that originally found in the mountains of Cabeza Prieta NWR.
southwest.fws.gov /refuges/arizona/cabighrn.html   (859 words)

 Bighorn Sheep   (Site not responding. Last check: 2007-10-07)
Bighorn sheep (Ovis canadensis) once numbered in the millions in western United States and were an important food source for humans.
Sheep range in color from light brown to grayish or dark, chocolate brown, with a white rump and lining on the back of all four legs.
Sheep are commonly seen along the road through the Gardner River Canyon, where visitors should be alert for bighorns crossing between their preferred cliffs and the river where they drink.
www.yellowstone.cc /bighorn.htm   (671 words)

 Bighorn Sheep   (Site not responding. Last check: 2007-10-07)
Bighorn Sheep are well adapted to survive in the rugged terrain and harsh climate of the Rocky Mountains.
Sheep are able to eat large amounts of forage rapidly, then retreat to cliffs or ledges to thoroughly rechew and digest their food, safe from predators.
Bighorn sheep, with their unique and spectacular combination of adaptations for mountain survival, are a fitting symbol of Rocky Mountain National Park.
www.coloradoguide.com /rmnp/bighorn.htm   (1085 words)

 Desert Bighorn Sheep
The distribution of desert bighorn races is uncertain, although the distribution maps of Trefethen (1975) and Weaver (1985) are accepted by mountain sheep biologists (Figure).
Historically, desert bighorn occurred on all mountain ranges and plateau slopes in the southern, northern, and western sections of Arizona (Russo 1956).
In 1993 the desert bighorn population was estimated at 2,200-2,250 (N. McKee and J. Karpowitz, Utah Division of Wildlife, unpublished data).
biology.usgs.gov /s+t/noframe/r039.htm   (1592 words)

 Bighorn Mountain Sheep - British Columbia Wildlife
- The California bighorn resides in alpine meadows and foothills near rocky cliffs in the Okanagan, Similkameen and south Chilcotin regions.
Most sheep ranges are within easy range of cliffs with avalanche chutes and talus slopes which they use to escape from predators.
The bighorn has always been prized for their meat; the horns were used by some Indians to make powerful bows and are still prized by hunters as trophies.
www.bcadventure.com /adventure/wilderness/animals/bighorn.htm   (305 words)

 Bighorn Sheep
Audubon's bighorn sheep were native to the Black Hills and Badlands of South Dakota.
Uncontrolled hunting caused the extinction of this subspecies of bighorn sheep by 1916.
Bighorn sheep are very social animals and are generally separated into two groups.
www.northern.edu /natsource/MAMMALS/Bighor1.htm   (855 words)

 Yosemite Association - Nature Notes
Sierra Nevada bighorn sheep are awe-inspiring inhabitants of a magnificent mountain range and one of the great symbols of wilderness, reminding us of an era when their mountain realm was considerably less altered by modern humans.
These wild sheep are a unique form (subspecies) of bighorn that apparently evolved as such in only the eastern portion of the southern and central Sierra Nevada of California, and thus belong to a select group of endemic plants and animals that call those mountains home.
Bighorn sheep use the rocky, steep terrain for safety from predators –; bedding down on ledges and steep slopes at night.
www.yosemite.org /naturenotes/BighornSheep.htm   (1608 words)

 Mountain Sheep (Ovis canadensis)
In such places the sheep receive adequate protection, for they have an unobstructed view in all directions except uphill, from which direction the approach of a predator would be signaled by rolling stones.
The bighorn ram does not assemble and guard a harem but moves from flock to flock seeking ewes that are ready to mate.
At one time bighorn sheep were widespread in Trans-Pecos Texas but the advance of civilization and the inroads of domestic sheep upon the range of the wild animals led to a steady decline of the bighorn population.
www.nsrl.ttu.edu /tmot1/oviscana.htm   (712 words)

 Bighorn sheep metapopulation ecology in Glacier National Park
Although their individual effects are unknown, these factors clearly have combined to extirpate bighorn sheep from important historical winter ranges in and adjacent to the Park, and threaten to eliminate sheep from additional areas in the future.
Because bighorn habitat use patterns are traditional, with knowledge of specific areas being passed from one generation to the next, natural recolonization of these areas is unlikely and an overall reduction in carrying capacity must be assumed once extirpation has occurred.
Bighorn sheep habitat use and demographics will be studied primary in the Many Glacier area of Glacier National Park.
www.nrmsc.usgs.gov /projects/bighorn_sheep.htm   (709 words)

 Bighorn Sheep
Bighorn, or mountain sheep are large, muscular appearing, with dark brown hair on top in northern populations, to a tan color in southern populations.
Bighorn sheep range from mountains of southwestern Canada, south through the Rocky Mountains, into the Sierra Nevada range, and in desert mountains of the southwestern U.S. into portions of Mexico.
Bighorn sheep exhibit feeding peaks in early morning and at dusk that alternate with rest and rumination
imnh.isu.edu /digitalatlas/bio/mammal/Hoofed/bish/sheep.htm   (775 words)

 Bighorn Sheep
Bighorn sheep (Ovis Canadensis) inhabit grassy mountains, alpine meadows and foothill country near rocky cliffs that allow quick escape.
Desert Bighorn sheep are considered to be good indicators of land health, because they are sensitive to human-induced environmental problems.
The digestive system of Bighorn sheep is very complex and has 9 stages that allow the sheep to maximize removal of nutrients from various foods.
www.bighorn-sheep.com   (263 words)

 Los Coatis Kids Club: Big Horn Sheep   (Site not responding. Last check: 2007-10-07)
Bighorn sheep are best known for the huge horns which the rams display on their heads.
Bighorn sheep are found in the highest mountains of the West from Canada through the United States and into northern Mexico.
This relationship between the bighorn sheep and the bacteria living in his digestive tract is known as symbiosis -- neither the sheep nor the bacteria can survive without the other.
www.desertmuseum.org /kids/features_bighorn.html   (1081 words)

 Bighorn Sheep - Alberta Sustainable Resource Development   (Site not responding. Last check: 2007-10-07)
Bighorn sheep are brown to greyish brown in color, with light underparts, a white muzzle and an obvious, light rump patch.
Thus, bighorns are not as agile as mountain goats on difficult terrain.
Sheep are mainly grazers, feeding on grasses and forbs.
www3.gov.ab.ca /srd/fw/hunting/bighorn.html   (314 words)

 NatureWorks - Big Horn Sheep   (Site not responding. Last check: 2007-10-07)
The bighorn sheep can be found in the Rocky Mountains from southern Canada to Colorado and parts of Nevada, western Texas and eastern California and northern Mexico.
Bighorn sheep live in alpine meadows, mountain slopes and foothills.
Sometimes when a group of bighorn sheep is threatened by a predator like the wolf, they will group together in a circle and face out towards the predator.
www.nhptv.org /natureworks/bighornsheep.htm   (487 words)

 Bighorn Sheep
Bighorn sheep live mostly on grasses, but they will also eat many other plant species when they are available.
The numbers of sheep were diminished so greatly that some entire portions of their original range have been cleared of wild sheep.
Bighorn sheep populations are now finally on the rebound due to the hard work of individuals dedicated to preserving and studying them.
www2.canisius.edu /~noonan/cac1999/bhs.htm   (930 words)

 AllRefer.com - bighorn, in zoology (Vertebrate Zoology) - Encyclopedia
One type of bighorn lives at high altitudes in the W United States and another in desert regions.
Alaskan types are the Dall's, or white, sheep and the Stone's, or fl, sheep.
Bighorn sheep are classified in the phylum Chordata, subphylum Vertebrata, class Mammalia, order Artiodactyla, family Bovidae.
reference.allrefer.com /encyclopedia/B/bighorn.html   (227 words)

 Bear Country USA
Bighorn Sheep can be found in all of the southwestern deserts.
Bighorn Sheep rarely inhabit areas that are disturbed by humans.
Bighorns are generally active during the day, feeding morning, noon and evening, then lying down to chew their cud.
www.bearcountryusa.com /information.asp?ID=4   (287 words)

 02.10.2004 - Bighorn sheep threatened by climate change, finds new study
According to the study, groups of bighorn sheep were more likely to be lost in lower elevation mountains where there were higher average temperatures and less precipitation.
Desert bighorn sheep primarily live in small, isolated groups throughout the mountain ranges of the Sonoran, Mojave and Great Basin deserts of the southwestern United States.
Statewide, the population of desert bighorn is estimated at 3,500.
www.berkeley.edu /news/media/releases/2004/02/10_sheep.shtml   (861 words)

 Bighorn Sheep   (Site not responding. Last check: 2007-10-07)
In the early 1900's bighorn sheep in North America were estimated to number between 1.5 and 2 million.
Bighorn populations were devastated by hunting, diseases introduced by domestic livestock and competition from grazing livestock.
Bighorn sheep habitat include mountain slopes that are rugged with sparse growths of trees.
www.scsc.k12.ar.us /2001Outwest/PacificEcology/Projects/WashamR   (335 words)

 Bighorn sheep returning to historic range in Oregon
PORTLAND — Eighty-one California bighorn sheep are now adjusting to their new homes in four locations across the state thanks to cooperative efforts of several organizations and the Oregon Department of Fish and Wildlife.
The bags are crucial in keeping the sheep in a vertical position during flight to reduce the incidence of stress and respiratory complications.
Funding for the 2002 California bighorn sheep project came from the State Chapter of the Oregon Hunter's Association (OHA), the Klamath Falls Chapter of OHA, Washington Chapter of the Foundation for North American Wild Sheep, the Confederated Tribes of the Warm Springs and the Oregon Department of Fish and Wildlife.
www.dfw.state.or.us /public/NewsArc/2002News/January/011802news.htm   (813 words)

 Bighorn Sheep Printout- EnchantedLearning.com
The bighorn sheep (Ovis canadensis) is a hoofed mammal that lives in the Rocky Mountains of North America (alpine tundra) and in some desert areas.
Bighorn sheep range from southern Canada to Colorado (in the Rocky Mountains) and in an area from Mexico to California to Nevada to Texas (in desert areas).
Bighorn sheep are about 32 to 40 inches (81-100 cm) tall at the shoulder and are 50 to 62 inches (1.3-1.6 m) long (including the tail).
www.enchantedlearning.com /subjects/mammals/sheep/Bighornsheep.shtml   (438 words)

 California Bighorn Sheep - Discover The Outdoors   (Site not responding. Last check: 2007-10-07)
Bighorn sheep have double-layered skulls shored with struts of bone for protection during their fierce head-butting.
These bighorn sheep are found in alpine-desert grasslands in close association with mountains, cliffs, foothills, and river canyons, which offer escape areas at any sign of danger.
California bighorns prefer areas with low precipitation levels in winter (2000 to 6000ft in elevation) and move to higher elevations in the summer (6500 to 8500ft in elevation).
www.dto.com /hunting/species/generalprofile.jsp?speciesid=49   (652 words)

 Bighorn Sheep (DesertUSA)   (Site not responding. Last check: 2007-10-07)
Bighorn sheep are gregarious, sometimes forming herds of over 100 individuals, but small groups of 8-10 are more common.
Bighorn are primarily grazers, consuming grasses, sedges, and forbs, but will eat young twigs, leaves, and shoots when preferred food is scarce (especially in winter).
In 1979 Bighorn between Mt. San Jacinto and the Mexican border were estimated to number 1,180; in 1996 that number had plummeted to 280 sheep.
www.desertusa.com /big.html   (1488 words)

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