What is the fastest bird in the world?

The fastest bird in the world is the Peregrine Falcon (Falco peregrinus). The Peregrine Falcon is a medium-sized bird of prey found all over the world. It is known for its incredible speed and agility, particularly during dives, where it can reach speeds of up to 240 miles per hour (386 kilometers per hour).

The Peregrine Falcon's incredible speed is due to several factors. Its long, pointed wings reduce air resistance, and its streamlined body shape and powerful muscles allow it to maneuver quickly and easily in the air. The Peregrine Falcon also has a unique nose structure that enables it to breathe efficiently while traveling at high speeds.