This may look like a shot from Alfred Hitchcock's The Birds, but this eerie scene was created by none other than mother nature herself. A Reddit user posted the shot to the site's r/WTF thread and titled it "birdnado." The cluster is thought to be made up of starlings, a bird known for flying in thick flock formations called murmurations. These clusters reduce the amount of energy required during travel and protect them from predators. If starlings sense a shift in one part of the flock the entire pattern will shift.