Verreaux's Eagle-owl (Bubo lacteus) is a huge (24 inches long) raptor common to the woodlands of east Africa. By day, they roost and sleep in the shade. By night, they hunt, dropping quietly out of the darkness upon amphibians, fish, reptiles, and small mammals (even monkeys!). They have stealth technology: small hair-like textures line the edges of their feathers. These eliminate wing-flapping sounds. The weight of this eagle-owl--combined with talon strength--kills immediately upon impact.
Don't worry. You're not going to hear this one coming.