You probably asked the perfect question: "Fastest at what?" The Peregrine Falcon can dive at over 200 mph, but for level flight does not even make the top ten. For level flight, the Spine-Tailed Swift is the fastest recorded at 106 mph. For swimming, sources list the Gentoo Penguin at 25 mph. For running, the Ostrich reaches 45 mph. The list goes on and on. General questions usually have multiple correct answers.