While we are on the subject of bird flight here are some fun facts about our feathered friends from The Encyclopedia of Trivia
The Arctic Tern, which is a small bird, can fly a round trip from the Arctic to the Antarctic and back. This can be as long as twenty thousand miles per year. This is the longest migration for a bird.
The highest flying bird in the world is a type of vulture. The Rüppell’s vulture, or Gyps rueppellii, is found throughout the Sahel region of central Africa, which has been found at confirmed elevations of 37,000 feet.
The fastest bird is the peregrine falcon. It can fly at a speed of more than 215 miles per hour.
The hummingbird is the only bird that can hover and fly straight up, down, or backward.