Bison were nearly driven to extinction in North America but have been partially restored through conservation efforts. Understanding their welfare needs and the challenges of restoration guides effective advocacy and support.
Bison welfare in restoration contexts involves both the welfare of individual animals in managed herds and the population-level welfare implications of landscape availability. Bison evolved as wide-ranging migratory animals that followed grass productivity across the Great Plains in complex seasonal movements. The vast majority of current bison are in commercial or semi-commercial herds where this behavioral repertoire cannot be expressed — they live in smaller enclosed pastures under management regimes shaped by production rather than welfare considerations. Truly wild conservation bison in large protected landscapes represent the welfare ideal, but face political and management conflicts at the edges of protected areas where they come into contact with livestock operations and brucellosis concerns. Indigenous-led restoration programs that return bison to tribal lands address both cultural continuity and ecological restoration, and typically approach bison management with a longer-term landscape perspective that aligns better with bison behavioral needs. The welfare and ecological case for continued bison range expansion is strong, constrained primarily by political rather than biological feasibility.