The fastest flying bird is the peregrine falcon. Known for its incredible speed during a hunting stoop (high-speed dive), the peregrine falcon can reach speeds of over 240 miles per hour (386 kilometers per hour). This bird uses its keen eyesight to spot prey from high altitudes and performs impressive aerial maneuvers to capture its target. In level flight, the peregrine is not as fast as some other birds, but its flying abilities in stoop are unmatched in the avian world. This remarkable speed makes it a formidable predator.