Wild Pronghorn Advanced: Migration Corridor Protection

Advanced strategies for protecting pronghorn migration corridors through policy, infrastructure, and community engagement in the American West.

Key Facts

The Path of the Pronghorn in Wyoming — the longest land mammal migration in the lower 48 states at 160 km — was the first federally designated wildlife migration corridor
A single fence modification — raising the bottom wire to 46 cm — can restore pronghorn passage at a cost of approximately $0.30 per meter
The Wyoming Wildlife Corridors Initiative coordinates federal, state, and private land management to protect connectivity across pronghorn range
Road underpasses and overpasses designed for pronghorn require specific specifications — pronghorn avoid enclosed spaces and require open, sight-line-clear crossings
Climate-driven vegetation shifts are gradually moving optimal pronghorn habitat northward, creating new pressure on migration routes not currently protected
GPS tracking programs have mapped individual pronghorn movements to identify critical bottleneck locations where small parcels of protection yield large connectivity benefits

Welfare Considerations

Pronghorn corridor protection represents one of the highest-leverage welfare and conservation investments available in North American wildlife management. The welfare impact is direct — pronghorn unable to complete migration routes experience nutritional stress, increased predation risk, and reproductive failure. The intervention cost is remarkably low for its impact: fence modification programs that restore migration at critical bottleneck locations cost a fraction of the per-animal welfare benefit they provide. The science of corridor identification through GPS tracking has advanced to the point where targeted investment in specific bottleneck locations provides dramatically better welfare outcomes than broad habitat protection in less critical areas.

What You Can Do

Support the Pronghorn Migration Initiative and Wyoming Wildlife Corridors Initiative
Advocate for wildlife-friendly fencing modification requirements on public land grazing permits — bottom wire at 46 cm restores passage
Donate to land trusts that acquire critical bottleneck parcels blocking pronghorn migration routes
Support wildlife crossing infrastructure funding in federal transportation bills — crossings benefit pronghorn and many other species
Learn about the Path of the Pronghorn and other identified migration corridors to engage knowledgeably with policy discussions