Fourth Transfer Another Mark of Success for Cooperative Restoration Effort
Poplar, MT

Today, Fort Peck Assiniboine and Sioux leaders and Defenders of Wildlife transferred 11 more bison from Yellowstone National Park to the Fort Peck Indian Reservation. After today, 104 bison will have been successfully transferred to the reservation. This is the fourth relocation since April 2019 under a new program that diverts disease-free Yellowstone bison from slaughter to tribal-led restoration efforts. 

Today’s transfer comes with additional symbolic importance. One of the trucks used to transport the bison was driven by Arnt Thomas “Rusty” Stafne, former Fort Peck Tribal Chairman and one of the early leaders of this Yellowstone bison restoration program. In 2012, Stafne made the original motion to move bison from Yellowstone to Fort Peck Reservation. His efforts led to successful pilot project releases of nearly 200 bison in 2012 and 2014, evolving into the conservation program it is today.

“Buffalo are critical to maintaining a link to our cultural legacy,” said Stafne. “After so many years of working on this effort, I’m proud to see this program succeed and bring buffalo home to stay.”

Defenders of Wildlife has been working with the Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation on bison restoration since 1999, partnering with the tribes to secure state and federal political support and by contributing financially to the effort. In 2014, Defenders awarded its annual Wildlife Conservation Award to the tribes for their leadership in bison restoration. Then-Chairman Stafne accepted the award. 

“Over the past decade, our partnership with the buffalo leaders of Fort Peck has made it possible for bison to once again roam their historic lands across the Great Plains,” said Chamois Andersen, senior Rockies and Plains representative at Defenders of Wildlife. “This new program has already been a great success, saving over 100 bison from slaughter in a single year and with many more going to tribal herds in the years to come.” 

Following their relocation to Fort Peck, the bison will remain in quarantine for one year before a final test for brucellosis—a disease found in some bison and elk in the Greater Yellowstone Area. Once the 11 bison complete their final tests at Fort Peck, they will then be made available for translocation to other tribal herds, aiding with the continuing restoration of the species throughout its historic range. Previously, due to Yellowstone’s bison population limit, these bison—whether brucellosis positive or negative—were indiscriminately sent to slaughter. 


  • This is the fourth transfer of Yellowstone bison to Fort Peck under the new program. Five bison were transferred from the Yellowstone area in April 2019, another 55 were transferred in August 2019, and 33 bison came in January 2020.
  • Quarantine is the best option for translocating animals that test negative out of the Greater Yellowstone Ecosystem so that they can be used for restoration of the species. 
  • The Fort Peck Assiniboine and Sioux Tribes are leaders in buffalo restoration and continue the expansion of their buffalo program, now at nearly 15,000 acres with a capacity for 375 buffalo. 
  • Two transfers of bison to Fort Peck have occurred prior to this new program authorized by Yellowstone National Park. Under a pilot project approved by the state of Montana, 61 bison made the journey from the Yellowstone region to Fort Peck Reservation in 2012 where a crowd of tribal members and others waited to welcome bison home after a 120-year absence. Another 136 were relocated in 2014. Defenders of Wildlife assisted Fort Peck Tribes and the Montana governor’s office by arranging and paying for the transfer logistics.
  • The bison being sent to Fort Peck are direct descendants of the last bison saved from the slaughter of the 19th century. While the species once boasted a population of more than 30 million across North America, only about 1,000 remained by 1900, most in captivity. Though saved from extinction and numbering 500,000 today, almost all bison are managed as livestock and contain cattle genetics. 

Defenders of Wildlife is celebrating 75 years of protecting all native animals and plants in their natural communities. With a nationwide network of nearly 2.2 million members and activists, Defenders of Wildlife is a leading advocate for innovative solutions to safeguard our wildlife heritage for generations to come. For more information, visit and follow us on Twitter @Defenders.

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