Which risk increases when avian feathers experience excessive preening, altering barb alignment?

💡 Explanation

When feathers are excessively preened, causing barb misalignment, aerodynamic efficiency is reduced because the interlocking structure is disrupted, impacting lift generation and control especially during complex maneuvers. Therefore flight control reduction results, rather than increased heatloss, UV penetration, or buoyancy loss, which relate to insulation or floatation functions.

• Which hunting outcome arises because prey ear-muscles involuntarily contract upon hearing a bat use echolocation?
• Which environmental shift causes reduced moth pollination effectiveness?
• Which outcome primarily affects the survival rates in camouflaged-prey when environmental patterns rapidly shift?
• Which physiological outcome directly results when a hibernating groundhog experiences peripheral vasodilation during arousal?
• Which outcome accompanies obstructed sucrose invertase production after the ‘waggle dance’?
• Which outcome occurs when juvenile hormone concentrations decrease significantly?