How Does Universal Characteristics of Birds - Every Bird Has... Work?

Every bird has feathers and can fly, just like every kid has shoes and can run.

Imagine you're wearing a cozy blanket on a cold day, that’s what feathers feel like for birds. They keep them warm when it's chilly, and they help them fly smoothly through the sky. Some birds have soft feathers, like a fluffy pillow, while others have stiff ones, like the spikes on a tennis ball.

When a bird flies, its wings move up and down, kind of like when you flap your arms to glide across the floor. These movements make the air push against the wings, helping birds go higher and farther, just like how a big fan can help you feel cooler in summer.

Even though some birds are small, like a sparrow, and others are huge, like an eagle, they all share these universal characteristics, feathers and the ability to fly. It's like every kid has shoes and can run, even if some kids wear big sneakers and others wear tiny slippers.