The Spying Egg

Scientists place a silicon-filled computerized egg in a swan nest to learn about the birds’ hatching process.

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By sawing off the top of a swan's egg and cleaning out the innards, Stephen Ellwood of the University of Oxford’s wildlife conservation research unit created the perfect swan spy. Inside the hollowed egg, he placed a miniature computer, then planted the “cyber egg” among a group of swans at the 1,000-year-old Abbotsbury Swannery in Dorset.

“These kinds of devices make observations that were impossible, possible,” he told BBC News. “People just can't go into the places that these devices can go.”

The cyber egg recorded its temperature eight times per second, using mobile phone technology to transmit the data to a nearby base station. The researchers were hoping to understand how the swans incubate their eggs. A swan can take up to 2 days to lay 4–6 eggs, but the baby swans, called cygnets, all hatch around the same time. Thus, it appeared that swans do not keep the ...

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Meet the Author

  • Jef Akst

    Jef Akst was managing editor of The Scientist, where she started as an intern in 2009 after receiving a master’s degree from Indiana University in April 2009 studying the mating behavior of seahorses.
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