From: Morgan Erickson-Davis, MONGABAY.COM, More from this Affiliate
Published January 12, 2011 09:31 AM

"End of Days" bird kill just a fraction of real death toll

Shortly after midnight on January 1st, thousands of red-winged blackbirds fell from the sky in Beebe, Arkansas. Some were outright dead, others mortally wounded, all were found to have suffered severe injury through blunt-force trauma. While there has been speculation around a number of hypotheses including a climate change-driven weather phenomenon and even a fluctuation in the earth's magnetism, as usual the most obvious solution is the most likely: fireworks set off by people celebrating the holiday flushed the birds into the air where, unable to see, they collided with houses, trees, and each other.


However, these deaths represent just a fraction of the true impact humans have on birdlife.

"There are many human-related causes of bird mortality including buildings, outdoor cats, pesticides, communication towers, automobiles, wind farms, and lead poisoning from spent ammunition and lost fishing tackle." said American Bird Conservancy Vice President, Mike Parr. "But because most of the deaths from those sources often occur in ones or twos, they often go unnoticed or unreported."

In total, says Parr, studies have estimated that up to one billion birds may be killed annually due to collisions with buildings. Another billion fall prey to domestic cats. Up to 50 million birds are killed each year after hitting communications towers, and pesticide poisoning has been linked to the deaths of up to 15 million birds each year.

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