Birds moving north in response to climate change

This study was reported by Brad Sylvestor in the Manchester Bird Watching Examiner.

"According to information released by Audubon and BirdLife USA, an analysis of data gathered over the last forty years has shown a dramatic shift in the natural ranges for as many as 177 US Bird species in response to climate change. The shifts correspond closely to average winter temperatures over the affected regions."

For the rest of the story, visit http://www.examiner.com/x-13230-Manchester-Bird-Watching-Examiner~y2009m7d2-Birds-moving-north-in-response-to-climate-change