Which mechanical outcome arises when a raptor's flight feathers experience excessive barb separation?

💡 Explanation

When barbs separate excessively, air flows through the feather structure, disrupting the smooth airflow over the wing because turbulence increases due to loss of aerodynamic integrity, increasing form drag. Therefore, lift is reduced, rather than improved glide/soar, rate compensation or maneuverability, as these rely on smooth feathers and airfoil characteristics.

• Which risk to coral vitality increases when phosphate levels acutely spike?
• Which consequence results when a plant experiences prolonged high-temperature stress impacting Rubisco function?
• Which outcome often occurs throughout drought conditions due to ABA?
• Which outcome occurs when bat vocalizations weaken upon target approach?
• Which consequence results when avian air sacs rupture due to elevated internal temperatures?
• Which outcome occurs from tiger vocalizations changing pitch?