"The National Park Service earlier this year completed its largest transfer of bison from Yellowstone National Park to the Fort Peck Indian Reservation in Poplar, Mont.
The 112 Yellowstone bison were moved onto tribal land the week of Jan. 10 by NPS and the Animal and Plant Health Inspection Service, part of an effort to send fewer bison to slaughter each year and restore the animals on tribal land.
According to the park service, bison are transferred as part of population control in Yellowstone National Park. Researchers estimate that the park can sustain up to approximately 10,000 bison, and in summer 2022 biologists counted roughly 6,000."
Source: E&E News, 02/13/2023