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SECTION 3. Birds. Characteristics of Birds. All birds are covered in feathers and lay hard shelled eggs. They sit on these eggs to incubate them or warm them up so they will hatch. Birds has two legs, two wings, and beaks

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Section 3

SECTION 3

Birds


Characteristics of birds

Characteristics of Birds

  • All birds are covered in feathers and lay hard shelled eggs. They sit on these eggs to incubate them or warm them up so they will hatch.

  • Birds has two legs, two wings, and beaks

  • Flying is common in most birds, but penguins, ostriches, emus and kiwis cannot fly.


Adaptations for flight

Adaptations for Flight

  • Most birds have hollow bones that make their skeletons light.

  • Birds use their tales to help them steer in the air.

  • Flying requires a lot of energy, birds eat high energy foods like nectar, insects, fish or other meat.

  • As wind passes above and below the wing it creates lift.


Flight vs flightless

Flight vs Flightless


Functions of feathers

Functions of Feathers

  • Birds are the ONLY animals with feathers

  • Contour feathers give adult birds their streamline shape and color.

  • Down feathers are small and fluffy. These keep birds warm.

  • Birds that fly will molt their feathers one at a time matching on each side.

  • Birds care for their feathers by preening. They will clean and smooth their feathers by using oil their body produces.


Types of feathers

Types of Feathers


Self check

SELF CHECK

  • List 2 reasons why birds would need to preen their feathers.

  • Describe why birds are able to fly.

  • How can a bird keep its egg warm if it lives in Antarctica? THINK PENGUIN!


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