this application is a live wallpaper or screensaver of moving bird wallpaper
flying also helps them travel from cold places to warm places, called migration. let’s talk about aerodynamics. that’s the science of how air moves around things. it helps explain how birds fly. bird wallpapers live. a bird uses its legs to push off the ground into the air. that’s called thrust. it flaps its wings to stay in the air. that’s called lift. when you put thrust and lift together, a bird flies. its wings also have a curved shape, like an upside-down spoon. this shape helps the air move above and below the wings and keep the bird in the air. birds’ feathers also help them fly.
air rushes through the feathers, creating more lift. birds don’t always have to flap their wings to fly. once they’re up high in the sky, they can also glide, which is kind of like getting a free ride on the air. they only have to flap their wings once in a while. bird wallpapers live. they can also let a jet of air push them up even higher, to the tops of really tall trees. that’s called soaring. different birds can fly in different ways. sea birds can dive really fast into the ocean to catch fish. hummingbirds can flap their wings so fast all you see is a blur. every time you ride in an airplane, you can thank birds for showing humans how to fly. all animals need some kind of locomotion, or ability to move. bird wallpapers live are lightweight animals that developed the ability to fly in order to adapt to their environment. flying gave them the ability to escape their predators, as well as make them better hunters. flying also allows them to escape nasty weather and migrate to warmer temperatures. bird wallpapers live. it’s important to note that not all birds can fly the ostrich, for example, adapted to its environment by developing the ability to run very fast!