Which structural effect occurs when a bird loses several primary feathers on one wing during flight?

💡 Explanation

When primary feathers are lost asymmetrically, the airfoil shape of the wing is disrupted, increasing stall speed due to early flow separation and adding induced drag from the wingtip vortices. Therefore stall speed and drag increase, rather than improved roll control or glide ratio, which require intact flight surfaces.

• Which outcome occurs during increased blood flow near mammal skin?
• Which consequence results when larval insect imaginal discs fail to receive ecdysone signal during metamorphosis?
• Which outcome occurs when antelopes heavily exert themselves during predator evasion?
• Which outcome occurs when salmon returning inland lack imprinted stream odors?
• Which outcome occurs when a songbird experiences deforestation within established auditory transmission ranges?
• Which outcome impairs scout bees' directive precision when obstacles displace the waggle?