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Pronghorn buck
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Pronghorn buck

by Mia McPherson

Gallery: WildlifePosted October 10, 2011656 views7 comments
Antilocapra americana

On September 24, 2010 I saw this Pronghorn buck for the first time. He was a good distance from me, up on a hill in bad light with grasses in front of him that covered most of his body. I took some images despite those conditions because I wanted to take a closer look at his horns, I could tell even from a distance that there was something odd about their shape. Later at home I blew up the photographs I had taken and could see more clearly how this buck's horns were deformed. I shared the images with Lon because I had never seen such misshapen horns on a Pronghorn before. At the time I hoped to be able to photograph him again.

This October 3rd I spotted this pronghorn for the third or fourth time in this past year only this time I had good light, the buck wasn't far away and because it is rut season he was only paying attention to the does and other bucks in the area. I remember that last year I wondered if his bent and misshapen horns created any issues that would prevent him from successfully breeding. I don't actually know if this Pronghorn has any problems mating; and I suspect that he does not, but I do know that he was fully in rut, that he wasn't having any problems at all chasing away the competing bucks and that he could have cared less that I was there photographing him.

When I first started taking images he was behind some of the wild sunflowers that seem to be especially abundant this year on the island and I could get a clear shot of him, I was at 400mm with my 1.4x TC attached and he filled the frame quite nicely until he quickly started to move in my direction. Finally when he was in the clear I could not fit him in the frame at all, I had been zooming back while he made his approach until I couldn't zoom back any further. I had my D200 with the 18-200mm VR lens in my backpack but there just wasn't any time to pull it out and get my settings where they needed to be and there wasn't even a spare 15 seconds to take the teleconverter off of the D300 with the 200-400mm VR attached so I just went for head shots of the handsome fellow.

When the buck was far enough away from me to get full body images it always seemed that the sunflowers were obscuring the Pronghorn so I guess I'll need to keep looking for him to get some of the full body shots I desire. This post is more about sharing images of this atypical buck rather than the technical aspects of the photo itself.

I know the one horn is very close to the edge of the frame, wish I would have had a little more distance between the buck and I.

Nikon D300, f6.3, 1/2500, ISO 640, Nikkor 200-400mm VR with 1.4x TC at 200mm, 83% of the original frame, Just cropped from the left to try to balance the comp, natural light, not baited. Larger version provided.

Thanks for looking.

Comments

7 comments
Comment posted by John Tobias on October 10, 2011 at 8:02 PM
Mia, a very interesting photo. I would guess this pronghorn suffered some sort of damage to his horns early on. It will be interesting if you can get photos of him when his horn sheaths are shed. Not sure when this happens. It almost looks like he might not be shedding the old sheaths as the new ones come in, but continue to grow one after the other. Thanks for sharing this animal with us.
Registered on September 12, 2009, 2120 Posts, 6455 Comments
Comment posted by Dan Walters on October 10, 2011 at 9:04 PM
Never have seen one like that. It is very interesting.
Registered on October 30, 2005, 405 Posts, 3693 Comments
Comment posted by Anand Narayanan on October 11, 2011 at 3:23 AM
They are just evolving cool ways to shade their eyes from the sun :biggrin:

Kidding aside, never seen one with such a crooked/curved horn. Ive seen a couple of them with horns bent forward. Managed a few shots of one in the tetons.
Registered on October 25, 2009, 110 Posts, 835 Comments
Comment posted by Vincent Grafhorst on October 11, 2011 at 11:33 AM
Poor buck. It is amazing to see such enormous deformations in some specimens. I remember having seen Gemsbok (Oryx) with the weirdest deformations, some of which no doubt obstruct a 'normal' way of life. You captured this in nice light with an interesting BG. Thanks for sharing.
Registered on February 24, 2006, 504 Posts, 7203 Comments
Comment posted by Sally King on October 11, 2011 at 1:09 PM
Those are the weirdest looking horns I have ever seen. Glad he is still doing okay. In terms of the photo it matches your usual quality with great light and outstanding details.
Registered on December 2, 2008, 416 Posts, 4450 Comments
Comment posted by Morkel Erasmus on October 11, 2011 at 4:37 PM
You captured a good study of this specimen, Mia. These horn deformations can turn out quite weird, as Vincent said.
Registered on March 22, 2011, 385 Posts, 2068 Comments
Comment posted by Howard Cheek on January 2, 2014 at 8:05 AM
The unique malformation of the horns adds great interest, I like this.
And there's always at least one odd-ball in the crowd.
Although many times they're not so easy to spot :wink:
Great capture Mia, all the best this New Year! :toast:
Registered on July 24, 2008, 1201 Posts, 10758 Comments