American Bison Society
An American conservation organization established to prevent the extinction of the American bison and later revived to support the species' ecological recovery across North America.
Last updated August 26, 2026
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Overview
The American Bison Society (ABS) is a conservation organization devoted to the protection, restoration, and public understanding of the American bison, or Bison bison. It was established in 1905 by the New York Zoological Society, now known as the Wildlife Conservation Society, at a time when the species had been pushed close to extinction. Bison had once ranged across the plains and grasslands from Mexico to central Canada, with herds numbering in the tens of millions. Their grazing, migration, and other ecological behaviors had shaped prairie landscapes for centuries. During the nineteenth century, westward expansion, commercial hunting, habitat disruption, and the removal of bison from Indigenous and western landscapes caused a catastrophic population collapse. By the late 1880s, only about 1,000 bison were believed to remain in North America. The society brought together conservationists, zoologists, public advocates, and sportsmen. Early figures associated with its creation and work included Ernest Harold Baynes, who served as the first secretary, Bronx Zoo director William T. Hornaday, conservationist Madison Grant, and President Theodore Roosevelt. The organization combined public education and advocacy with practical herd-management and reintroduction projects. Its work helped demonstrate that bison conservation required more than protecting individual animals: it also depended on establishing secure herds in suitable public landscapes and creating institutions capable of managing them over the long term. One of ABS's most important achievements came in 1907, when it arranged the shipment of 15 bison from the Bronx Zoo to the Wichita Mountains Wildlife Refuge and Game Preserve in Oklahoma. The transfer, conducted by cart and rail, is regarded as the first animal reintroduction in North America. The society also campaigned for a permanent protected range in Montana. After ABS advocacy helped secure congressional authorization in 1908, the organization raised funds to purchase animals for the proposed National Bison Range. Its fundraising exceeded the target of $10,000, and the animals were released onto the range in 1909. The society continued supporting the creation and reinforcement of public herds. In 1913, the New York Zoological Society, working with ABS, donated 14 bison to Wind Cave National Park in South Dakota. ABS also assisted in establishing a herd at Fort Niobrara National Wildlife Refuge in Nebraska. These efforts contributed to a network of protected bison populations that became important reservoirs for species recovery and conservation management. Believing that its original emergency mission had been substantially achieved through the establishment of secure public herds, ABS was disbanded in 1935. The American Bison Society was relaunched in 2005 by the Wildlife Conservation Society, marking a shift from an early twentieth-century rescue campaign toward broader ecosystem and landscape conservation. The revived initiative focuses on securing the ecological future of bison in North America, including the conservation of genetically and ecologically meaningful herds, the protection of habitat, public education, and collaboration among conservation organizations and land managers. Its work has also been linked to wood bison recovery efforts in Alaska, including support connected with the Alaska Wildlife Conservation Center. ABS is therefore best understood not as a commercial product brand but as the public-facing identity of a long-running conservation initiative whose historical legacy includes some of North America's earliest organized wildlife reintroductions.
History
The American Bison Society was founded in 1905 by the New York Zoological Society, now the Wildlife Conservation Society, to address the precipitous decline of the American bison. The species had historically occupied a vast range extending from Mexico through the Great Plains and into central Canada. Bison were important ecological agents: their grazing and movement influenced prairie vegetation, nutrient cycles, and habitat structure. By the late nineteenth century, however, commercial hunting, westward settlement, habitat conversion, and other pressures had reduced the continental population to a remnant. William T. Hornaday's late-1880s survey estimated that approximately 1,000 bison remained in North America. ABS was created as a practical conservation and public-awareness organization. Its early supporters included Ernest Harold Baynes, William T. Hornaday, Madison Grant, and Theodore Roosevelt. Rather than limiting its activities to educational appeals, the society pursued the establishment of protected herds and the transfer of animals to suitable refuges. In 1907, it shipped 15 bison from the Bronx Zoo to the Wichita Mountains Wildlife Refuge and Game Preserve in Oklahoma. The journey by cart and rail is recognized as the first animal reintroduction in North America. The organization next helped build political and financial support for a permanent National Bison Range in Montana. Following ABS advocacy, Congress passed legislation in 1908 to establish the range, contingent on the society raising $10,000 to obtain animals for the new herd. ABS surpassed that fundraising goal. In 1909, the animals were released on the range, creating a protected population that became part of the broader recovery of public bison herds. ABS and the New York Zoological Society continued to support additional herd initiatives. In 1913, the society donated 14 bison to Wind Cave National Park in South Dakota. ABS also helped establish a herd at Fort Niobrara National Wildlife Refuge in Nebraska. These projects created geographically distributed populations in public conservation landscapes and helped preserve bison after the species' near disappearance from much of its former range. By 1935, ABS concluded that its initial emergency objective had been sufficiently advanced through the creation of secure public herds and disbanded. Its historical contribution remained significant because it helped institutionalize wildlife reintroduction, protected-range development, and conservation fundraising in the United States. The Wildlife Conservation Society later preserved relevant archival material, including the William T. Hornaday records and correspondence from his period as ABS president. In 2005, the Wildlife Conservation Society relaunched the American Bison Society. The revived organization addressed a different stage of conservation: not simply preventing extinction, but ensuring that bison could persist as ecologically meaningful wildlife across North America. Its modern activities include support for bison conservation, habitat and herd management, public understanding, and cooperation among conservation bodies. The initiative has also been associated with wood bison recovery work in Alaska. The modern ABS thus extends the original society's rescue mission into a broader effort to restore bison populations and their ecological role.
- 2005
American Bison Society relaunched
[1]The Wildlife Conservation Society revived ABS to pursue the species' longer-term ecological recovery in North America.
- 1935
Original organization disbanded
[1]ABS ended its original operation after determining that secure public bison herds had been established.
- 1913
Herd support expands to Wind Cave and Fort Niobrara
[1]Fourteen bison were donated to Wind Cave National Park, while ABS assisted in founding a herd at Fort Niobrara National Wildlife Refuge.
- 1909
Bison released on the National Bison Range
[1]ABS exceeded its $10,000 fundraising requirement, and animals were released on the new Montana range.
- 1908
Congress authorizes a permanent National Bison Range
[1]Following ABS advocacy, Congress approved creation of a permanent range in Montana, subject to the society raising funds for the herd.
- 1907
First North American animal reintroduction
[1]ABS shipped 15 Bronx Zoo bison to the Wichita Mountains Wildlife Refuge and Game Preserve in Oklahoma.
- 1905
American Bison Society established
[1]The New York Zoological Society founded ABS to prevent the extinction of the American bison and increase public awareness of its plight.
- 1889
Hornaday survey documents the bison population collapse
[1]A survey associated with William T. Hornaday reported that only about 1,000 bison remained in North America, helping establish the urgency of organized conservation.
Products and positioning
A conservation initiative focused on recovering the American bison as both a wildlife species and an ecological force in North American grasslands.
Marketing campaigns
- 2005Modern bison ecological recovery initiative
North America
The Wildlife Conservation Society relaunched ABS to move beyond emergency preservation toward the recovery of bison as an ecologically significant species.
Outcome. The revived initiative continued conservation advocacy and supported bison recovery work, including efforts connected with wood bison in Alaska.
- 1908National Bison Range fundraising and advocacy campaign
United States
ABS petitioned for federal establishment of a permanent bison range in Montana and raised the required funds to purchase animals for the new herd.
Outcome. Congress authorized the range, ABS exceeded the $10,000 fundraising target, and animals were released there in 1909.
Brand decisions
2005
Relaunch the American Bison SocietyStrategyBackground
A century after the original founding, bison conservation had shifted from immediate extinction prevention toward ecological restoration and long-term herd stewardship.
Action taken
The Wildlife Conservation Society relaunched ABS as a modern bison-conservation initiative.
Aftermath
The organization resumed public-facing work focused on the ecological future of bison across North America.
1935
End the original society after establishing secure public herdsStrategyBackground
ABS judged that its founding emergency objective had been substantially met through the creation of protected bison populations.
Action taken
The original organization was disbanded.
Aftermath
Its conservation legacy continued through the public herds and refuges it helped establish, as well as through records preserved by the Wildlife Conservation Society.
Recent events
- 2010
Progress report on the Wood Bison Recovery Program[2]
Other
National Geographic reported on progress in a wood bison recovery program at the Alaska Wildlife Conservation Center that received support in part from the Wildlife Conservation Society and its bison-conservation work.
- 2005
American Bison Society relaunched by the Wildlife Conservation Society[1]
Other
The Wildlife Conservation Society revived the American Bison Society one hundred years after its original establishment, giving the historic organization a new role in advancing the ecological recovery of bison in North America.
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