So there are between 15 and 60 birds for each person on earth. As some
people here have life lists over 700, I feel that some people are
hogging more than their share.
Peter Shute
wrote on Wednesday, 10 October 2007
10:39 PM:
> I'm reading an interesting book at the moment and it prompted a
> question.
>
> i wondered just how many birds there are in say Australia or on
> planet earth. I'm talking total numbers rather than species. i
> googled and read a couple of interesting pieces on the subject
> including some research from Gaston and Blackburn which suggests
> there are between 200 and 400 billion birds on earth! Wow! Another
> study estimated 100 billion plus birds on earth. In comparison there
> are around 6.6 billion people on earth, so our avian friends
> well and
> truly outnumber us.
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