best answer > Do birds stand up when they sleep 2024?- QuesHub | Better Than Quora
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  • Oliver Green——Works at the International Criminal Court, Lives in The Hague, Netherlands.

    Passerines, or perching birds, stand on their toes, not the flats of their feet as humans do. Depending on the species, birds sleep while standing or sitting with their feet locked on perches, or cling by their claws to tree-trunks.Sep 5, 2008read more >>
    +119962023-05-24 14:00:46

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