Introduction to Bird Wings

1. What is one theory about how bird wings may have evolved?

• From aquatic ancestors who swam long distances

• From dinosaurs that developed proto-wings for gliding between trees

• From mammals that used flaps of skin for short flights

• From reptiles that burrowed underground

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Which bone is NOT found in a bird's wing?

• Humerus

• Ulna

• Femur

• Radius

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Why do birds have a keel in their breastbone?

• To protect their heart and lungs

• To store calcium for eggshell production

• To provide a surface for flight muscle attachment

• To help with balance during flight

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 Which muscle is responsible for lifting a bird’s wing during flight?

• Pectoralis major

• Trapezius

• Supracoracoideus

• Latissimus dorsi

What are the two main types of flight feathers on a bird's wing?

• Primaries and secondaries

• Tertiaries and down feathers

• Contour feathers and plumes

• Coverts and quills

 Birds with elliptical wings, such as woodpeckers, are best adapted for:

• High-speed flight over open areas

• Long-distance gliding over oceans

• Quick, maneuverable flight in forests

• Soaring on thermals for long periods

Which bird species has wings adapted for underwater "flying"?

• Peregrine Falcon

• Penguin

• Club-winged Manakin

• Albatross

What unique sound-producing adaptation is found in Club-winged Manakins?

• Vocal cords capable of mimicking other birds

• Wing feathers that vibrate to produce a trilling sound

• Specialized beaks that create whistling sounds

• Tail feathers that produce clapping sounds

What is the wingspan of the Wandering Albatross?

• 6 feet

• 8 feet

• 12 feet

• 17 feet

What is the primary cause of bird population declines in the U.S. and Canada?

• Predation by larger birds

• Habitat loss

• Overfishing

• Lack of available mates

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