The dynamics of flight.

[bloolark]

I know that there are a lot of people who have some pretty strong opinions for and against freeflight in parrots.

Ignoring all of that (though you can debate if you want), this video is possibly the best flying I have ever seen, and gives an astonishing look into how the various parts of the birds work together to not only keep them aloft, but manage to steer and maneuver in an extremely windy location.

http://www.youtube.com/watch?v=UiWk7ckCOEE