Have you ever heard a bull elk make this sound before?

This big guy is ready for his closeup. Known for growing up to well over 700 pounds and making a combined noise of a high-pitch whistling and deep, low roar, a bull elk bugle is a sure sign of rutting season. While it might be common to hear a bull elk bugling from the shores of Yellowstone Lake, this game camera caught a pretty unique noise. Check out the impressive footage of a bull elk striding up to a camera and making a sound we bet you’ve never quite heard before.