Birds and Their Characteristics

Define Contour feather

(a)  

Define Lift

(a)  

Define Crop

(a)  

Write the 4 characteristics of Birds

(a)  

During soaring flight, a bird _________________.

• Rises on a current of warm air

• Moves its wings rapidly

• Folds its wings against its body

(a)   requires a bird to use the most energy.

An adaptation that does not enable birds to fly are (a)   .

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

The structure of a woodpecker’s (a)   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