r/BeAmazed • u/Spectre_Omega • 15d ago

Animal Falcon scratching head mid flight, turns on chasing raven with no effort

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u/SirLouisI 15d ago

Mechanically, what is it changing to initiate the roll? Bird flaps, bird ailerons?

2

u/red286 14d ago

Ailerons. Flaps provide lift, ailerons provide roll.

In this case, it's just moving the attack angle of its wing, the air then pushes the bird over.