Birds are warm-blooded vertebrate animals with feathers, wings, and beaks, and most of them lay hard-shelled eggs. They are a distinct animal group found worldwide, and while many can fly, some like ostriches and penguins cannot.

Quick Scoop

  • Birds are the only animals with feathers.
  • They have wings, but wings are not always used for flying.
  • They breathe air, have a backbone, and are warm-blooded.
  • Their beaks are shaped for different foods, like seeds, insects, or nectar.
  • Most birds build nests and lay eggs with hard shells.

Simple picture

A bird is basically a feathered, egg-laying animal built for life in the air, on land, or even in water. Penguins use their wings for swimming, and ducks use webbed feet to paddle, which shows how different birds can be.

Tiny note

If you want, I can also give you a kid-friendly version, a one-sentence definition, or a more scientific explanation.