Sunday, June 17, 2012

Christine Luiggi

Convergence in ornaments: many bird species feature males with bright, colorful feather patterning, ideal for attracting possible female mates. Below are three different species whose feathers all feature different-- but all quite vibrant-- colors: red, purple-green, and yellow. They are the Northern Cardinal, the Violet-Green Swallow, and the Arkansas/Green-Backed Goldfinch, respectively.





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Convergence in feeding mechanisms: many birds have this same large beak, characterized with a rounded, downward-sloping shape; the top half emerging beyond the lower half, ultimately creating a fine point-- possibly good for better food gathering.  Immediately below are two toucans, the Ariel and the Chesnut-Mandibled (left to right). Further below is the Vulturine Guineafowl, one of my favorites in the museum. 



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