Mommy, why do birds fly?
446469
Because there chicken legs arent strong enough to walk!
656671
I used to own chickens and roosters. Neither can fly not even a few meters. They are able to jump/flight to there perch and thats about it.\n\nWing to body size ratio prevents their flight.
776602
i watched a tv program on this about birds that swarm and its all to do with a few factors ie all the birds are equal distance apart for flying purposes . no bird wants to be on the outside of the swarm or flock due to predator that target such swarms "falcons". so if you can visualise a bird has to have a zone around it to fly and it don't want to be on the edge.when the bird  near it moves to the centre of the swarm to stop being on the edge.the new bird that's exposed whether it be from the side above or below that bird will then move to gain cover in the swarm.hence the shapes you get and the sudden change in direction of the swarm you see in the sky.there is a a computer graphic program that runs this formula but i don't were to tell you to go for this.
1018059
For a while, humans had a firm grip on the aerodynamics of fixed wing flight, and found that those rules didn't correctly explain the aerodynamics of moving bumblebee wings.\n\nNone of which menas that our understanding of flixed wing flight was hopelessly flawed, or that bumblebees fly with the help of tiny angels, or anything like that.  It just means that you can't accurataly understand a phenomena by applying inapplicable theories to it.  \n\nNow , we know the aerodynamics of bumblebees better; specifically, we know the aerodynamics of the small vortices created by insect wings better, so that I believe we do now have accurate hypotheses to apply to bumblebees flight.
679764
My pet Emu -Larry- says you are mistaken. In reality birds do not fly. See, you were outside, enjoying a lovely day when you stumbled upon a group of kids playing in the park. What you saw was nothing more than a fowl ball.
455631
To answer the question with less verbosity, birds can ride rising hot air columns higher and higher into the air.
137719
One day I came home and there was a baby owl IN my house. I hadn't left any windows/doors open so I have absolutely no idea how it got in. It wouldn't leave either, she just stayed perched on top of my dresser and flew around the house a little. It was weird though because I felt really peaceful with her there...She finally flew out of a window about 4 days later. I looked online and found out that an owl can mean " a truth will be revealed in the near future". A week later I found out I was pregnant. Creepy, right?
884128
Yes indeed, I agree with you that it would be easier for them to chew worms if they have teeth. However teeth are heavy and would make it very difficult for birds to fly.  This is especially important for birds of prey who must fly swiftly to catch their food. Due to this "anatomical structural design"  birds have light  beak which is good for giving food a good mashing. Birds "chew" their food inside a part of the stomach called the gizzard.  The gizzard has strong muscles which grind the food against a rough inner surface to break it down.♥
461940
Yes. They could fly inside a space shuttle. Birds would have a hard time adjusting to the lack of gravity though, and would look funny trying to fly. Assuming there would be the normal amount of air inside the shuttle, the wings would be effective as they would push some air around.
241563
Bats are mammals and they do fly like birds.Squirrels can only glide a limited distance.
98736
Chimpanzee babies fuss. Sea gull chicks squawk. Burying beetle larvae tap their parents' legs. Throughout the animal kingdom, babies know how to get their parents' attention. Exactly why evolution has produced all this fussing, squawking and tapping is a question many biologists are trying to answer.
406562
a bird, because it would be awesome to fly!!
180348
FLY! And effortlessly... I've gotten used to walking, being in thee city...but flying around instead of walking is something I've wanted to do since I was a cub, lol...so unbearlike, right? It'd be cool and for some reason less energy-burning if there are wings for gliding..
765515
Good question.  \n\nBird metabolism is super fast.  So they eat enough to support themselves, and it turns to birdy fat.  Then they eat some more and it partially digest, They cough that up and feed their chicks with it.
266827
Nice question, it has been asked before. \nI'll quote myself:\n"Because of the way their legs are built.\nThe tendons in bird's legs are arranged as a pulley-rope system so that the weight of the animal pulls on these tendons and keeps their fingers closed at rest. Thus they do not require voluntary muscle action to maintain their grasp on branches.\nThis is specially characteristic of songbirds. Others may rely on nests, platforms or other types of dwellings"\nYour canary is a songbird, a member of order Passeriformes. Thus it has these specialized tendon system :-)
90248
Because GOD didn't want the people to fly, but he let the birds to fly.
332086
because they "fly" on the grass when they play.