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Nature's own tornado detector saves migrating birds, study finds
Nature's own tornado detector saves migrating birds, study finds

Ornithologist Henry Streby was happy enough that songbirds weighing less than two nickels managed to carry tiny electronic sensors from Tennessee to Colombia and back. Then he looked at the flight paths taken by several of the birds. The data showed that five of his recently returned golden-winged warblers fled their Appalachian Mountain breeding ground and winged back to the Gulf of Mexico a day or two ahead of a massive thunderstorm cell that would later spawn 84 tornadoes and kill at least 35 people. Streby, a National Science Foundation visiting research scholar at UC Berkeley, thinks the birds may have been reacting to very low-frequency sound waves produced by the distant,...

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