Here's a picture made last fall: a bull elk crossed the Snake river in Grand Teton National Park during early evening hours.
As it was getting quite dark when I found the bull elk, I was luckily carrying my light-sensitive f/2.8 lens on me.
I made several images of the bull elk and his harem crossing the river, but this one is my favorite as the elk shakes off the cold water.
Here's the bull bugling shortly after:
And here's the bull elk against the backdrop of the Tetons. It was so dark that my eyes had trouble seeing him but the camera's autofocus system was able to pick him up!
Are you interested in learning photography?
Check out my book: Beginner's Guide to Bird & Wildlife Photography
Available on Amazon.com and in select bookstores around Grand Teton and Yellowstone National Parks: click here