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The shape of the beak is related to what the bird eats: Chickens have a short hard beak for picking up and cracking seeds, ducks have a flat beak for scooping up things out of the water, and eagles have a hooked beak for tearing meat.

The feet indicate how the birds live. The chicken's feet are for walking and scratching the ground, the eagle's feet are talons for grasping, and the duck's feet are webbed for swimming.

The sternum structure is related to flying ability. A chicken's sternum is not as large as that of an eagle or a duck, because a chicken's wings are not large, and it doesn't fly very well. I would think an eagle's sternum is proportionally larger than a duck's, because an eagle is larger and a better flyer- it must lift its prey.

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11y ago
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4mo ago

Chickens have short and sturdy beaks suited for pecking on the ground, while eagles have hooked beaks for tearing into prey, and ducks have broad, flat beaks for straining food from water. In terms of legs, chickens have strong, sturdy legs for scratching and walking, eagles have powerful legs for grasping and carrying prey, and ducks have webbed feet for swimming. The sternum of a chicken is flat, while that of an eagle is keeled for strong flight muscles, and ducks have a prominent keel for efficient swimming.

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Q: Compare the beak structure leg and sternum of chicken an eagle and duck?
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