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| | December 31, 2004, Hour Two: Tsunami Science Birding |
 | | In this hour, we'll talk about how tsunamis are created, their effects, and whether an effective system can be created to provide warning of these killer waves. |
 | | It uses bird sighting data that volunteers across the country have collected during a period spanning ten days on either side of Christmas. |
 | | That data, compiled by researchers at the Audubon Society, is used to help identify population trends caused by changes to birds' food, predators, or habitat. |
| www.sciencefriday.com /pages/2004/Dec/hour2_123104.html (196 words) |
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