Birds are a kind of animal.Birds can be found all over the world.Sparrows,doves,owls,eagles,and chickens are some common birds.Birds lay eggs.Usually they have a nest for the eggs.Birds have two feet and special arms.They don’t have hands or fingers.They have wings.Most birds can fly.Birds have feathers,wings,and very light bones to help them fly.They can’t be too heavy!Only a few birds,like ostriches(鸵鸟)or penguins,can’t fly.[读懂了吗].
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