why do birds fly?

Answer 1

because they have wings!!!! ;-)

Answer 2

Everything about a bird is made for flight. In order to understand the natural flight of birds, we must first look at the structure of a bird.

The shape of the wing helps the bird to fly. The shape is made by the feathers. The tail of the bird is like a rudder. It helps the bird steer. When the bird lands the tail is used as a brake.

Flight is much more than feathers and wings. Everything about a bird is made perfectly for flight. Their entire body inside and out has been designed for flight. Every part must give maximum power with a minimum of weight.

There is a weight limit for a flapping bird. The heavier the animal, the bigger its wings need to be. The bigger the wings, the more muscle is needed to move them. The biggest flying bird today is called the Great Bustard. They weigh as much as 32 pounds and are 4 feet long.

There are some birds which don't fly.

The best way to fly is to be light. So most birds are small. Birds have feathers that are very light weight. The bones that birds have are also made for lightness. Birds have less bones than most animals. The bones they have are hard but thin. The biggest bones in flying birds are the breast bone and the shoulder bones.

Some birds have bones weighing less than their feathers. The powerful flying birds have medium weight skeletons. Birds that don't fly have the heaviest skeleton. In birds many bones are fused together. In this way not as many muscles are needed. The biggest muscles a bird has are its flight muscles. These are very strong because they have to raise the entire body into the air.



Natural balance is maintained by birds. There are 8,600 species of birds in the world today. They are found everywhere. Birds play a vital role in the balance of nature. They eat insects, pests and small animals. Fruit eating birds are best for scattering seeds for these plants. Seed eating birds digest seeds and in so doing keep millions of weeds from the earth.

Answer 3

Just like an airplane’s wing, a bird’s wing
is curved from front to back in a shape scientists call an airfoil. As the bird’s wing flaps, air flows faster over the upward-curved top than it does across the bottom. Fast-moving air has less pressure than slow-moving air, so there is more pressure pushing up on the wing than there is pushing down, creating what scientists call lift. Lift is what gets a bird (or an airplane) into the air and helps keep it there.

Birds fly because they can!
They fly to go from one place to another.
Why walk when you can fly?

Answer 4

Birds fly because this is how they evolved to be..But Not all birds fly too you know..Emu's and Ostriches don't fly at all! Their wings are too small.

Answer 5

"Why" is about motivation. A bird's motivation is simple.
1. Find food.
2. Find a mate.
3. Find a place to nest.
4. Find nesting materials.
5. Find a warmer place to live.
6. Find a cooler place to live.

;-D Maybe they enjoy the view!

Answer 6

Do you mean, "why", like "why do they choose to take to the air?", or "why", like "what makes a bird ABLE to fly"?

Answer 7

Why does the caged bird sing?

Answer 8

well this is a meaningless question.it is the god's creation which belong to avies group with the characteristics of flying.
other special charecteristic is its steam-lined body shape enabling it to fly i.e. why u find the body of plane of dat shape

Answer 9

Because that's what they're built for and that's what helps them survive. They've adapted to their environment to increase their survival. It's taking millions of years and that's what they're programmed for. Besides it's better than a poke in the eye.

Answer 10

So they can easily migrate from place to place with the changes in climate. Just think how hard it would be for them to walk south for the winter with those tiny legs!

Answer 11

because they like to say "nya nya" and taunt humans who can't. that's why you see them swirling, circling, diving, arcing, veering, swishing, flapping, darting, soaring, and -- yes -- pooping onto humans' heads.

it's all a show.

show offs. pfft!