I’ve got a new post up at 10,000 Birds on a study looking at changing populations of several hundred common species of birds in Europe and North America (mainly the US).

The two subcontinents exhibit dramatically different patterns, as shown in the enigmatic graph above.

Go to the post to unravel this intriguing mystery!

Have you read the breakthrough novel of the year? When you are done with that, try:

In Search of Sungudogo by Greg Laden, now in Kindle or Paperback
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