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1 .This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.
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2 .There's a partridge in a pear tree, two turtledoves, three French hens, four calling birds, six geese, and seven swans.
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3 .Or so goes some the lyrics to the 12 days of Christmas.
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4 .But on December 14th, the annual 21 days of the Christmas Bird Count begin.
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5 .And it's revealing a lot more about birds than just their numbers.
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6 .The effort put together by the Audubon Society since 1900 mobilizes tens of thousands of citizen scientists to get out and count birds.
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7 .Last year, more than 70,000 people from the Arctic Circle to Tierra del Fuego tallied some 60 million different birds, and nearly 2,300 different species.
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8 .Seems that birder competition drives good science.
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9 .Odd things have been noticed in recent times.
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10 .More hummingbirds now winter in the U.S.
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11 .A relative of colorful puffins known as the razorbill has moved hundreds of miles south in search of food, and many washed up on shore dead from starvation.
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12 .But it's not all bad news.
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13 .114 years of data show that bird populations continue to rebound in the continental U.S.and icons like the bald eagle are back.
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14 .As climate change and other threats shift highly mobile animals like birds, the birders will be watching and helping guide appropriate conservation efforts.
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15 .So get out and count!
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16 .Your minute is up, for Scientific American 60-Second Earth. I'm David Biello. Thanks for listening.
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