Category: Pronghorn

Pronghorn

Cause of Pronghorn’s Wound; Yellowstone National Park

Photo of pronghorn doe that seems to have suffered some serious injury to her neck.
What happened to this pronghorn?

Only one person took a guess on what had happened to this pronghorn.  She guessed a bear.  A good guess.   I thought I’d get a few more people to venture a guess.  Maybe some were afraid to guess wrong.  That presumes I would be providing the answer to what happened though.  The fact of the matter is that I don’t know for sure what happened to her.  I do have my own guess though.  I think a golden eagle attacked this pronghorn.  Why?

First of all, golden eagles have been observed by credible sources (published reports by biologists) attacking and killing pronghorn adults and fawns.   The attach begins by the eagle chasing one or more pronghorns and landing on the back of one and riding it while digging its talons into the pronghorn’s back.  Most of the damage is caused by the talons, although their beaks can also inflict injury.  If you’d like to read some of these reports you can click here, here and here.

Second, someone took several photos of a golden eagle eating an adult pronghorn while riding on its back.  Based on the photos, I assume (and hope) it died shortly thereafter.  The pictures have appeared in various places on the internet.  One place to see the photos is here.  I should warn you that the photos are somewhat gruesome.  I was hesitant to link to the photos, but decided on balance to do so with the warning.  The wound to the pronghorn in the photos is in the same place as in my photo and that’s why I guess the wound is from a golden eagle.  Anything is possible though.  It could be from another animal or a vehicle or a barbed wire fence (or whatever).

She was feeding when I saw her so the attack was over by then.  I hope she survived.

Black Bear, Grizzly Bear, Pronghorn

Yellowstone’s Bears Have Disappeared

Well, not really.  It’s just that they’re not grazing on grass as much any more and thus not as easy to see.  Elk (and pronghorn and bighorn) are giving birth and the word is out.  Grass was OK when meat wasn’t readily available, but now that meat is available the bears don’t have to settle for grass.  They need the protein to survive.  As I was driving from Mammoth to Gardiner yesterday there was a traffic jam mid-way due to a black bear kill of an elk calf.  This can be unsettling when you experience it, but that’s nature and let’s not forget most of us eat meat and it’s not much different, except we rely mostly on others to do our bidding.

Photo of pronghorn doe nursing fawn.
Mom and Baby

I don’t have any photos of elk calves yet, but I saw this female pronghorn and her twins close to the Roosevelt Arch the past couple of days.  I’ve gotten attached to them from photographing them.  I hope they survive the next four days or so until then can keep up with mom.

Pronghorn

Pronghorn Buck in the Rut

A photo of a pronghorn facing the camera.
Pronghorn Buck, Yellowstone National Park

I’m still working on upgrading the images on my website.  I’ve finished the mammals that start with a “B” (six species) and jumped ahead a bit to look at the pronghorn images from my trip to Yellowstone this past September.  The pronghorn rut was underway.  This buck was curious about me and came in for a closer look.

Pronghorn

Pronghorn Rut, Yellowstone National Park

Photo of a pronghorn buck during the rut.
Pronghorn Buck Defends His Harem

I’m in Yellowstone.  I came for the rut.  It’s been quite warm and that may have slowed things down a bit.

This buck was busy defending his harem.  I observed him for about an hour before sunset and he was kept busy by four other bucks.  He chased them all away without a fight.   It’s a bit like swatting flies though.

Photo of a pronghorn buck during the rut.
The Rut Is On.

This buck was on a course which would bring him through the harem.  He watched from a few hundred yards away and finally skirted around the above buck and his harem.  I’m not sure why he didn’t act like the other bucks.  Maybe he’d say he’s a lover, not a fighter.  But that doesn’t work.  In the pronghorn world, the only lovers are the fighters.