What species is the smallest living bird in the world? What circumstances limit the bird size from the bottom?


1 Answer 1


The smallest bird in the world is the bee hummingbird.

I think the minimum size is only limited by the size of organs. I mean that certain organs need to have a minimum size to maintain their function in the organism.

  • $\begingroup$ It is unclear to me how the "Wall effect" that you link under "organism" is relevant to your point. Is that an error? $\endgroup$
    – vkehayas
    May 31, 2018 at 13:03
  • $\begingroup$ The answered was probably thinking of something more like this, mrothery.co.uk/exchange/allkeynotesas.htm, but that is more of a limit on maximum size rather than minimum size. $\endgroup$ May 31, 2018 at 13:23
  • $\begingroup$ @vkehayas yeah it is not much related to this topic. I quite misuse that it. $\endgroup$
    – L.Diago
    May 31, 2018 at 13:37
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    $\begingroup$ @L.Diago maybe update the link to reference Wikipedia instead, which not only gives the facts listed in your link, but also has pictures of them? $\endgroup$
    – Doktor J
    May 31, 2018 at 18:59
  • $\begingroup$ A better link: Bee Hummingbird. $\endgroup$ May 31, 2018 at 19:11

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