How are birds able to fly?

Answer

Birds are built for flying. They have bones and feathers that make them very light. Most of their bones are hollow and act like air pockets. Birds are mostly feathers and feathers do not weigh much. Birds have strong muscles and wings to help them fly.
Q&A Related to "How are birds able to fly?"
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1 Additional Answer
Birds are able to fly because of the way their body have adapted to their requirements. Each bird species has a different shape of feathers in order to allow their body types to fly.
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