> They won't? I never heard this stated before. Deer certainly will.
> Are pronghorns less prone to jump at all, or do they have some sort of
"thing" about wire?
> Will they jump other fences?
No. Their evolutionary history is one where they were out on the open
plains and never had to leap over vertical barriers. They certainly do
have the muscular ability, but not the behavioral ability to jump any
sort of fences. Thoughtful landowners out in pronghorn country have a
smooth bottom wire to their fences that is about 12" or so off the
ground. The pronghorn comes racing toward the fence and plays
baseball. They drop and slide right under, leap up and keep on going.
If this slows them down, I never noticied it!
One of the ways to spot antelope migrational paths is to look for
bright orange plastic fence posts. There'll be 8 to a dozen in a row.
Come migration time, the rancher moves his cattle out of that pasture
(remember that western pastures are huge, as befitting range carrying
capacity measured in a lot of acres per cow-calf pair), the lifts the
plastic posts off their supports and lays the fence down so that the
antelope can go over the fence. By the bye, I've seen antelope run up
to the downed fence and leap over the whole thing rather than pick their
way across. It figures, they evolved with gullies to cross, but not
downed trees to leap.