Which outcome follows from uneven feather wear during avian molting?

💡 Explanation

Compromised lift occurs due to disrupted airflow. Uneven feather wear alters the wing's airfoil shape, reducing effective aerodynamic lift because disrupted airflow causes added turbulence rather than smooth laminar flow; therefore reducing climb rate instead of descent rate.

• Which risk significantly increases if a hibernating mammal experiences sudden environmental warming during early winter?
• Which outcome predictably occurs when avian flight feathers experience excessive bending during high-speed flight?
• Which risk increases when extensive lung air sac damage impairs unidirectional airflow in a bird during sustained soaring?
• Which mechanism contributes to cavitation events in tall trees when soil water becomes limited?
• Which outcome results if the avian parabronchial lung's crosscurrent flow is disrupted?
• Which outcome occurs when a migratory bird drastically changes diets during stops?