Migratory antelope

Like the caribou in the arctic, Pronghorn Antelope are migratory, traveling 170 miles back and forth over a narrow corridor of sagebrush habitat in western Wyoming from the Grand Tetons to the upper Green River basin, near Pinedale.

Pronghorn Antelope, western Wyoming

However, unlike caribou migrants, Pronghorn must negotiate highway traffic and barbed wire fences.  These are fleet animals capable of running long distances at speeds of 60 mph, but they can’t jump fences.  In fact, their typical strategy is to crawl under the fence, and they often get caught in the barbed wire.

Pronghorn Antelope, western Wyoming

In October 2012, a new Pronghorn overpass corridor opened that enabled the antelope to cross busy highway 191 where over a hundred antelope and mule deer were killed each year. Similar types of wildlife corridors have been built in Florida to permit the endangered Florida Panther to safely negotiate travel between protected areas there.

Antelope overpass over Hwy 191 in western Wyoming

Safe travels, Mr. Pronghorn

7 thoughts on “Migratory antelope

    • What a neat summer that must have been. I would have loved to get involved in that kind of research in the summer. Thanks for sharing your experience.

      • There were wild oryx involved as they were imported to the area in the 40s or 50s by military personnel. Then we found a dead pronghorn one day and a local museum asked us to safe the head for study. Trying to cut off a pronghorn head with a dull knife sucked. But most of the time it was hiking around listening to the clicks on the radio antenna.

        • The oryx are going quite well here in NM. They breed and spread. I wish camels had done as well. The ‘wild west’ would be a bit more surprising!

    • Amen to that! The reduction of antelope/deer-car collisions in just one year was quite amazing after they installed that overpass.

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