Learning from extinction

Alexander Wilson wrote that “while visiting friends in New England, sitting in the kitchen suddenly the sky became dark, there was no light in the room, and a rumbling noise grew louder, I was certain it was a tornado”. When his friends saw how frightened he was, they exclaimed, “Oh, it’s only the pigeons flying overhead”.

With fossil records dating back to 100,000 years before present and once believed to be the most abundant land bird in North America, with a population of 3-5 billion, how does the passenger pigeon become extinct within 40 years of decline? 

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