One of the most colorful of all the toucans, the keel-billed toucan is best known for its oversized bill and vibrant feathers. Even though it looks heavy, its banana-shaped, brightly colored beak is actually very light. It is hollow and made of protein supported by thin rod-like bones. When they sleep, toucans turn their head so their beak rests on their back, and then they fold their tail up and over their head.
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