Terrifying Bird Sounds That Mean

Most people think bird calls are peaceful, but these species use their voices as a weapon of intimidation. Watch how these birds use unique—and sometimes mechanical—sounds to ward off threats before an attack. Nature’s most effective alarm systems!<br /><br />#natureismetal #wildlifeplanet #birdattack #scarynature #animalwarnings #predator #territorialanimals #birdbehavior