What species of bird has the largest sustained lift to weight ratio?

By sustained, I mean carry an object for a significant amount of distance.  Kilometers upon kilometers

3 Answers

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  • 1 month ago

    A bird can carry about its own body weight. The biggest bird is about 20 kilogram. And that is about the max a bird can carry.

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  • Quinn
    Lv 6
    1 month ago

    If you discount flight, then the Ostrich which can carry a full grown adult several miles. If you sustained flight and not extincted, then probably the Albatross. If you include extinct species, it would be prehistoric birds from the species Pelagornis chilensis which had wingspans of over 17 feet.

    • Nick1 month agoReport

      I mean non extinct, flying birds.  But I do appreciate the effort.

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  • Anonymous
    1 month ago

    Probably an eagle.  They can lift a newborn lamb.

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