Pronghorn are North America's fastest land mammals and undertake one of the continent's longest remaining migrations. Fences, roads, and development are fragmenting their routes and causing significant welfare impacts.
Pronghorn welfare is intimately linked to landscape connectivity. Fenced barriers that prevent access to winter or summer ranges force animals into nutritional stress, with consequences for body condition, reproductive success, and winter survival. Highway collisions cause acute injury and death and disrupt herd movements. The welfare case for maintaining migration corridors is compelling: pronghorn that complete their full migration have better body condition, higher reproductive rates, and greater resilience to environmental variability. Fence modification programmes, wildlife underpasses, and land-use policies protecting migration routes are effective interventions with measurable welfare benefits.