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Backyard Bird Count
The Northern Hemisphere is beginning to show signs of spring. But since the timing of the season can change from year to year, and region to region - tens of thousands of citizen scientists are helping researchers keep track of its arrival with a fairly simple, and fun, technique. VOA’s Rebecca Ward reports on Cornell University's Backyard Bird Count.
Video Length: 0
Date Found: March 08, 2011
Date Produced: March 08, 2011
View Count: 3
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