Why Are the Birds Disappearing?
January 17, 2008
Tens of millions of the most common birds in North America have disappeared, and their absence is signaling a silent alarm bell about the state of our ecosystem.
According to a report by the National Audubon Society, the numbers of some species of birds have plummeted by 60 percent to 80 percent.
The video above explains some of the dramatic environmental disruptions that are contributing to the decimation of the bird population, and what their disappearance means to the future of our planet.