How are birds able to fly above the clouds?
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Cloud altitudes are relative but birds have a unique respiratory system for processing air. Bird's also need less oxygen than mammals. Air flows from the nostrils into 9 air sacs. read more
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![Flight - 54ka [photo blog]](/images/550_84/84aebd922c27e1174bc94c6353b510d7.jpeg)
Source: blog.54ka.org
Further Research
Can birds fly in clouds?
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The Only Bird That Flies above the Clouds
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