SAN PASQUAL VALLEY, CA - On the 900-acre Biodiversity Preserve at the San Diego Zoo Safari Park, away from tourists, a group of scientists listen intently for the distinctive song of the cactus wren, a call that sounds like a sewing machine. In the name of conservation, they keep an eye on nests and wait for a bird to surface.
U.S. Geological Survey, Nature Reserve of Orange County and San
Friday, May 20, 2011
SCIENTISTS STUDYING SONGBIRD AT SAN DIEGO ZOO SAFARI PARK
Friday, May 20, 2011
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