“Why do birds have feathers?” is a common question asked by people who wonder a lot about birds. They are the only animals that have feathers. Other animals have fur or scales, but why?
Feathers are made of a lightweight material called “keratin”. Which is the same material that our fingernails and hair are made out of. The keratin helps make the feathers not too heavy, so the bird doesn’t have trouble flying. If feathers were made out of a different material, birds would most likely have trouble flying and flapping their wings.
In the base of every feather, there is a muscle attached to help the bird move. If a bird moves its wings down during flight, the feathers move together in one place. If they flap their wings upward during flight, the feathers separate and move apart to let air pass through.
Besides being able to fly, feathers allow birds to keep warm during cold days or winter. They can capture pockets of air to keep close to their bodies. They have the ability to rearrange their feathers to capture either more or less air depending on the weather. During cold times, you might even see a bird fluffing and moving its feathers around. This helps them to stay warm and prevent freezing.
In addition to body temperature regulation, feathers are water resistant, meaning they are waterproof. It doesn’t trap water. During the rainy season, their water resistant wings help them to stay warm. So they can keep dry while flying in the rain and while in water. Feathers don’t just protect birds from being cold, but also in the heat. Bird feathers help as protection against the sun, dark feathers work even better.
The colors of a bird’s feathers are sometimes used to attract a mate. They are a part of a bird’s identity and are what makes them different from each other. While some birds use their feathers to stand out, others use them to blend in. Some birds blend to branches of trees, as their feathers are similarly colored.
Surprisingly, birds can also shed their feathers. Just like our hair, birds feathers fall out then are replaced with newly grown ones. This process is called “molting”. Small birds molt one to two times a year. While bigger ones molt less frequently, about once every two years.
So, that is why birds have feathers. They are very useful to them and help them to survive. Feathers are a big part of a bird’s life.













I like cows because they are very big. You can hug cows and feed them with grass. Cows can lick you and it can try to bite you if you smell like grass. I really love feeding grass to the cows and I want to get one as a pet.