via The Spruce

I’m sure we have all dreamed of flying through the sky as birds do, haven’t we?  Life would be so much easier if you could fly wherever you want without worrying about traffic. You’d get anywhere on time.

But what appears to be easy has a complex mechanism at working behind it. So, have you ever wonder how birds fly? Let’s find out. 


Why Do Birds Fly?

via USC News

Flying is possible to birds due to several things such as physical structure, strength, weight, and speed. Let’s go deeper into this. 

The body of the birds is designed to fly and cut through the air – just like an airplane – Their bonds are thin, light, and hollow. That’s why they are lighter in weight than other animals; this allows them to move up into the air since less gravity is working against them.  

Besides, birds have large lungs and strong muscles. This allows the birds to have enough energy and to breathe – efficiently –  when flapping their wings. Also, strong muscles make it easier for them to move their wings.


So, What Makes Birds Fly?

via Wikimedia

First, a bird uses its legs to push out the ground into the air – that’s called thrust. To get more air to pass over their wings, birds will flap them – rotate their wings forward and down – to stay in the air.

The shape of the wings – which resembles an upside-down spoon – plays the most crucial role in their flight. Now, what happens when the bird is already in the air? Well, there’s the air pressure to consider.

The air pressure pushing at the bottom of the wings is much higher than the pressure passing on the top. Due to which the bird gets pushed upward – this is called the lift – 

So, when you put thrust and lift together, a bird flies.  

Fun Fact – The Peregrine Falcon can top 200 miles per hour, making it the fastest living creature on the planet.