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The Origin and Evolution of Birds

I will be asking various questions and will be publishing the results here.

  • Question: Which came first the chicken or the egg.
  • Answer: The egg because it was laid by a creature not quite a chicken.
  • We will be documenting the origin and evolution of birds.
  • Birds are split into orders then families then species and sub-species. Bird Order Family.
  • We will be finding out how and why these splits are made.
 
Arkive for photos, picture gallery, sound recordings, video and bird data, checklists etc. Field guide images of over 9,000 species. Checklists covering all bird species and most of the worlds countries.

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2008 Worldbirds © all rights reserved   Copy-right belongs to individual photographers

Sound recordings by XENO-CANTO are covered by creative commons Copy-right (CC)

BirdLife

Credits Some of the maps, data, are from http://en.wikipedia.org/wiki/Main_Page               Data from Avibase

01/03/2008 0000000

25/10/2009 500,000

28/02/2012 870,300

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01/01/2009 151,000

01/10/2010 562,291