If you make enough trips to the mountains, you're going to see some magnificent wildlife. If you're really lucky you'll see it in action.

Greeley resident Doug Rudnik was fortunate enough to capture these bulls on video gently going at it near Walden and shared his capture on Facebook.

Sibling rivalry? A battle for territorial bragging rights? Or just some friendly tussling between old friends?

Well, I'm not sure what was going on, but in the end, no harm no foul. It's just a couple of majestic mammals putting on a show and reminding us why we love living in Colorado.