List and describe two adaptations that enable birds to fly?

Answer 1

The two most important ones are their hollow bones which keep their body light and their oversized powerful chest muscles which enable them to keep moving their wings as needed during flying.

Answer 2

Well, they have wings that are airfoil shaped so that
the air above the wing moves faster than the air below it. Slower air has higher pressure than faster air, so the air pressure pushing up on the bottom of the wing is greater than the pressure pushing down. When this happens the wing moves up and we have lift. (Bernoulli's Principle)

- Bird's wings are naturally thin with feathers creating a smooth surface.

- When birds glide or soar their feathers allow them to maintain an optimum combination of lift and drag forces.

- A bird's skeletal system is designed so that it can easily fly through the air (hollow bones). The shoulder joints are designed so that the inner wings are held at a proper angle to obtain the greatest lift.

- A bird's body is designed to be very aerodynamic helping to reduce drag.

- Birds have feathers attached to a movable finger bone called the alula, found on the front of each wing. The alula adjusts air flows aiding in lift.

I got this information from my own personal website. Since I wrote the site I didn't want to have to re-word all this information. You are welcome to take a look at it. It is called bj's (that's me) science and you will find it at www.mysciencesite.com
The bird information is found in the grade 6 science area on flight.
http://www.mysciencesite.com/science6airflight2.html

I am also a science teacher.

Answer 3

most birds, with obvious exceptions like Penguins, have hollow bones to eliminate extra weight and have a lighter skeleton. they also have a forearms that have been modified into wings, with feathers that have a greater surface area than the bird is heavy, providing lift. they also have muscles designed to either beat rapidly providing rapid ascension or have a modified skeleton where the bones in "rest" position are in an open wingspan position thus giving them the unparalleled ability to glide. all of these adaptations are species dependent and vary within certain cases.

Answer 4

Bird Adaptations For Flight

Answer 5

first they have hollow bones. secondly their feathers increase their wingspan enabling more wind to flow over the top of their wings as they fly.


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Answer 6

Feathers and wings. Some believe that reptilian scales became feathers, and that forelegs became wings

Answer 7

hollow bones, feathers, wings