When meeting a potential mate, shoebills clatter their bills to create a sound similar to a machine gun firing. It has also been compared to a hippopotamus mating call. This terrifying call is created by vibrating their throats and clapping their upper and lower bills together.

Are Shoebills scary?

The shoebill, or Balaeniceps rex, is undoubtedly one of the scariest-looking birds on the planet. It stands at the unnerving average height of four and a half feet with an eight-foot wingspan, and its seven-inch beak can tear through a six-foot lungfish with ease.

What is the scariest looking bird?