The animal considered the world's fastest bird is the peregrine falcon. It can reach speeds of over 240 miles per hour (386 kilometers per hour) during its hunting stoop (high-speed dive), making it not only the fastest bird but also the fastest animal on the planet. The peregrine falcon is known for its exceptional vision and aerial agility, enabling it to spot prey from great heights. Found on every continent except Antarctica, this bird is a master of the skies, showcasing remarkable adaptations for survival and predation.