Baby birds have feathers that are soft and warm. They do not get feathers that allow them to fly, swim, and run like their parents until they are older. You see the Ick's adult feathers just developing here.

Feathers are made of keratin. That’s the same stuff that makes up human hair and fingernails, reptile scales, and shells. Keratin also forms birds’ beaks and the scales and claws on their feet.

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