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By flapping it wings causing enough momentum for the bird to fly.
No, this is physically impossible unless you are a bird.
By flapping it's wings like every other bird on the planet.
The bones are hollow and make the bird light and he can fly by flapping his wings.
Birds can fly because they have feathers that enables them to fly. That, and having hollow bones, being lightweight and flapping their wings to propel them through the air.
they fly by flapping there wings just like a bird or any other flying animal does
Tom tried to fly by flapping his arms like a bird, but it was ineffective because humans can't really fly.
It means for you to stop fooling around and start working on whatever you're supposed to be doing. The image is of a bird flapping around crazily instead of flying toward their destination.
Saving energy for they can use the air currents to fly instead of flapping their wings. Birds usually do this while migrating far distances.
OK, well they can fly because A)they have wings. Now, in order for a bird to fly its wing span must reach full growth and then they can proceed with the flying session. Each bird has a wing span. Which is how long there wings are. The longer the wings the faster it can fly. And the faster it can dive.
Your budgie is trying to exercise. He cannot fly properly, but if he grips the cage and flaps his wings, he is getting some of the exercise he craves. Just because the bird seems to want to fly, do not allow it to. A budgie on the loose in a house is a recipe for disaster for the bird.
their wings are not used for flapping