Which risk increases for soaring birds during heavy molting resulting in primary feather loss?

💡 Explanation

When primary feathers are lost during molting, lift production is reduced due to decreased wing area because air travels easily throughout the missing feathers affecting camber and airfoil of wing. As such the flight becomes less aerodynamically efficient resulting in stability concerns. Therefore reduced aerodynamic control results, not infection, heightened metabolism or poor camouflage which involves different mechanisms.

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