American bison are being restored to grassland ecosystems through conservation ranching. Managing welfare while preserving wild behavior requires careful approaches to intervention and husbandry.
Bison on conservation ranches occupy a unique welfare niche — neither truly wild nor domesticated, they benefit from some human care while retaining wild behavioral repertoires. The primary welfare challenge is the mismatch between bison stress physiology and human management needs. Bison respond to restraint and handling with extreme fear responses, elevated heart rates, and sometimes fatal capture myopathy. Low-stress handling techniques — curved chutes, Bud Box handling systems, minimal human contact — are essential. Veterinary interventions should be limited to clear welfare necessity. Conservation ranch bison benefit from grazing large areas with natural herd social structure intact. The restoration of bison to native grasslands contributes to ecosystem health that supports welfare of many co-occurring species. Population management that maintains genetic diversity avoids the inbreeding depression that threatens some isolated herds.