Hummingbird flight: The magic is filmed and animated.

A thousand frames a second from four cameras captured the motion and a computer has created an animation of hummingbird flight showing the structure of the air around the wing..  Like insects, they create lift on the upstroke too, 30% of the lift thus for 30% of the effort. They rotate wing pitch to optimize the lift of hundreds of vortices that agglomerate into larger ones to let it hover.  I love watching something this intricate and  normally invisible --- the turbulent air flow that lofts such a beautiful creature.  Reported at Science Daily News.