“A Little Bird Told Me” … Happy Birthday Charles Darwin
10,000 Birds
FEBRUARY 16, 2012
The most commonly cited example is “Darwin’s Finch,” which filled the woodpecker niche by adopting the practice of acquiring a cactus thorn, and using this to access grubs hidden beneath the bark of trees. How did they get from the Caribbean across the Isthmus of Panama, which is mountainous and very much in the way?
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