Pronghorn undertake the longest terrestrial migration in the contiguous United States, traveling up to 300 miles between seasonal ranges, and their welfare depends critically on maintaining open corridor habitat.
Pronghorn migration welfare operates as a landscape-scale challenge where individual animal welfare depends on corridor connectivity across hundreds of miles. Pronghorn that cannot complete their migration face nutritional deficits from reduced foraging area and potentially cannot reach adequate winter range before severe weather arrives. Fence barriers that stop pronghorn migration are welfare emergencies — animals that pile up against impermeable fences during migration face injury, stress, and the failure of the seasonal movement that their physiology depends on. The wildlife-friendly fencing campaign demonstrates that welfare improvement is achievable through private landowner engagement: replacing barbed lower wire with smooth wire enables pronghorn passage while maintaining livestock containment. The federal designation of the Path of the Pronghorn created the first legal framework recognizing wildlife corridors as conservation infrastructure requiring protection.