Larger image view: Bird flu clues may lurk in AV狼论坛 wildfowl
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Dusky Canada geese are visible from a helicopter in the Copper River Delta near Cordova July 18, 2005. Researchers took samples from the geese as part of the avian influenza program.
Photo courtesy Heather Huson, Institute of Arctic Biology
Filename: Helicopter_Copper_River.jpg
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