Which risk increases when feather barbules on a bird's wing become misaligned during prolonged flight?

💡 Explanation

When barbules misalign, airfoil shape degrades because aerodynamic control relies on interlocked barbules forming a continuous, smooth surface to maintain laminar airflow, decreasing lift generation. Therefore, reduced lift results, rather than dehydration, shivering, or predator detection which depend on thermal regulation or camoflage mechanisms.

• Which consequence results when specific bird songs lack clear structure?
• Which environmental consequence results to soaring avian species when thermal updraft formation diminishes?
• Which mechanism prevents airflow stall at high angles of attack in soaring birds like eagles?
• Which consequence results when anthropogenic noise masks bat biosonar signals?
• Which thermoregulatory consequence arises when a mammal's skin temperature drops substantially in frigid conditions?
• Which outcome increases glycogen depletion rate during prolonged avian shivering thermogenesis?