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Science. Zoology. Birds.      
montage of birds General Works.
 
Bird Body PartsBird Body Parts
The Skeleton of a Typical BirdThe Skeleton of a Typical Bird is especially suited for flying. Each bone is as thin and small as it can be and still be strong enough to support the bird's body.
Air SacsAir Sacs are thin-walled pouches found in various parts of a bird's body. These sacs are connected directly to the lungs and form a part of the bellowslike breathing mechanism.
A Bird's FootA Bird's Foot A sleeping bird cannot fall off a twig or branch.
Types of Bird FeetTypes of Bird Feet
FeathersFeathers Birds could not fly without feathers. The thick coat of feathers streamlines the body and helps the bird glide smoothly through the air, and also helps keep the body warm.
How Birds FlyHow Birds Fly A bird is able to fly mainly because the pressure of the air on top of its wings is less than the pressure below.
Wing ShapesWing Shapes
Types of BeaksTypes of Beaks
Where and How Birds Build Their NestsWhere and How Birds Build Their Nests
How Big Are Birds' Eggs?How Big Are Birds' Eggs?
The Shape of Birds' EggsThe Shape of Birds' Eggs Almost all birds' eggs are roughly oval in shape, and there are a few good reasons for this fact.
Bird Extremes
State Birds
 
THE ROBINSON LIBRARY
Science.--Zoology.--Birds.

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