Birds and Their Characteristics

Define Contour feather

Define Lift

Define Crop

Write the 4 characteristics of Birds

During soaring flight, a bird _________________.

• Rises on a current of warm air

• Moves its wings rapidly

• Folds its wings against its body

__________________ requires a bird to use the most energy.

An adaptation that does not enable birds to fly are __________________.

Each day, an average bird eats food equal to about a __________________ of its body weight.

The structure of a woodpecker’s ________________ enables the woodpecker to chip into tree wood.

True or false. Birds often pull their feathers through their bills to “zip” the barbs back together.

• True

• False