Which aerodynamic effect occurs when a soaring bird actively adjusts its flight feathers to increase lift?

💡 Explanation

When a soaring bird adjusts its feathers, it alters wing geometry to maximize the curvature, thereby increasing the lift coefficient because a higher camber generates a stronger pressure differential on the upper and lower surfaces. Therefore increased camber maximizes lift coefficient, rather than vortex suppression, boundary layer tripping or center of pressure migration which serve different aerodynamic functions.

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