American bison were reduced from 30 million to fewer than 1,000 by the late 19th century. Conservation herds now number over 350,000, but most are managed as livestock, raising welfare questions about culling, handling, and genetic purity.
Key Facts
American bison were reduced from 30+ million to fewer than 1,000 by 1889
Conservation herds now total approximately 30,000 in public lands and 350,000 in private herds
Public conservation herds are subject to population control culling when they exceed carrying capacity
Yellowstone bison face hazing and slaughter when they migrate onto Montana ranchland
Nearly all private bison have some cattle genetics through historic hybridisation
Welfare Considerations
Bison in public conservation herds that are culled for population management undergo the welfare impacts of any livestock slaughter process, often in remote locations with limited welfare infrastructure. Yellowstone bison hazed back into the park by snowmobiles and helicopters experience acute stress. The contradiction between 'wild conservation herd' status and 'livestock management' interventions creates welfare decisions without clear ethical frameworks.
What You Can Do
Support National Bison Range and Yellowstone bison conservation programs
Donate to American Prairie Reserve rewilding programs with free-roaming bison
Advocate for wildlife management approaches to Yellowstone bison rather than livestock brucellosis frameworks
Choose bison beef only from conservation-minded ranchers with transparent animal welfare policies
Engage with National Park Service bison management plan consultations