Pronghorns are North America's fastest land animal and undertake some of the longest remaining land migrations on the continent. Fencing and development threaten their welfare and survival.
Pronghorn welfare is acutely threatened by infrastructure that fragments their migration corridors. Fence entanglement causes suffering from lacerations, exhaustion, and prolonged death. Converting fencing to wildlife-friendly designs — raising the lowest wire to 18 inches from the ground and replacing barbed bottom strands with smooth wire — dramatically reduces entanglement mortality at low cost. Highway crossings kill additional pronghorns, and underpass or overpass wildlife crossing structures have proven effective where implemented. Supporting intact migration corridors is the highest-impact single intervention for pronghorn welfare.