I don't think this is real, but I don't care. It's really damn funny!

It looks like someone just set up a camera and caught this video of the deer appearing to fart. But the audio of the fart sounds too good. To get that quality of flatulent audio you would have to have a microphone relatively close to the deer's hind quarters. The mic on the camera wouldn't have been enough, unless this fart was so loud that it echoed back off canyon walls or something.

It certainly looks like the deer farted. I love the stinky overdub. Again I don't care. I've watched it 5 times and I'm still wiping tears from my eyes.