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"A computer model based on eBird data which recreates the spring migration of the indigo bunting," by Daniel Fink, eBird "The animated map shows the movements of the indigo bunting (Passerina cyanea), a songbird that winters in the tropics. It took five days to run on the lab's own computers. But the visualization was compelling, showing how the birds first made landfall at or near the Mississippi Delta and then used the river system to find their way to northern forests. "This shows how important the Gulf coast is early on in the migration," says Steve Kelling. Supplementary information for Emma Marris, "Birds flock online. Supercomputer time will help ornithologists make ecological sense of millions of records of bird sightings," News, Nature, 10 August 2010.http://dx.doi.org/10.1038/news.2010.395