Why do birds fly?

Question

Sci project

Answer 1

You mean why or how? How is been answered as wings are aerodynamic and use the same or similar physics as airplane wings for the shape and curve forcing air to travel faster over the top of the wing and create lower air pressure and lift.

The biological reason they fly is simple. They do because they CAN. If biological creatures do something that is an adaptive advantage they are more successful and reproduce better and survive longer and have more babies and spread the genetic trait.

This is more a arguement for scientists based on how you understand or define why an animal has some ability. My Zoology Prof in College said Animals don't develop things to use them they use them and the use develops over time. They didn't wake up with wings unless you are a creation science fan. They use wings because they have them and the better wings survived so the best wings are here now.

Depends on your question Physics of How or Zoology of Why?

Good luck

Answer 2

Most cruise speeds are in the 20-to-30-mph range. Nearly all birds have two, and some three speeds: for cruising, emergencies, and migration. A bird that normally flies at 20mph may average 30mph on migration, and in panic flight before a predator may reach 40mph for a few seconds. Impressions can also be misleading. The smaller the bird the faster it seems to be travelling. Actually, larger birds like geese are among the swiftest, sometimes attaining an air-speed of a mile a minute. This is about twice the speed of small birds which appear to dart about so quickly. Seabirds probably hold the record for the fastest wind-assisted speeds. Albatrosses and shearwaters are long-winged and built like gliders. Several species spend their entire lives in the strong winds of the 'roaring forties' in the Southern Hemisphere. Ranging up to 350 miles in the course of a day's flying is part and parcel of their foraging routes over the ocean, but almost all of the effort is provided by wind. Indeed, the longest-winged species scarcely need to flap at all. Pintail duck 55-65 m. p. h. Albatross 60 m. p. h. Teal 50-59 m. p. h. Mallard 50-58 m. p. h. Falcon 40-48 m. p. h. Sand grouse 43-47 m. p. h. Brant 45 m. p. h. Canada goose 44 m. p. h.

Answer 3

Think survival of the fittest. They fly because they can and we (land animals) cannot. There are many advantages to flying; they can migrate quicker, find better food sources, evade enemies, etc. There are more predators on land so flying is a big advantage. Flying gives birds an edge that most animals lack. Birds are vulnerable only to other birds or while they are on the ground or in the trees. Land animals are vulnerable to attack from the land AND the air.

Answer 4

In some way, the means of locomotion (ie flying) were adaptive for birds. Therefore this ability has continued and will probably survive until flying is found to be non-adventageous. Also, it gives birds a "birds eye view" of possible prey.

Answer 5

So it can escape from it predators in the air they have less predators to deal with and on the land they have a lot of predators to deal with. Birds also fly to look for food if food is scarce. They also fly to search for a mate.

Answer 6

Because they want to go somewhere warm when it going to be cold they migrate and also to build their nest and lay there eggs in the tree so they be safe from less predators. They also fly to hunt for their prey

Answer 7

they have the required body configuration to fly.Some birds, like ostrich,emu ,penguin and others can't fly.Their weight to lift ratio is too high to fly.

Answer 8

different atmosfer pressure between upside and downside its wings, the wind that caused by its wings make the difference pressure.

Answer 9

Because it's easier than walking!

Answer 10

gift from G-d to inspire man.