News From the Field
Birds Call to Warn Friends and Enemies
December 3, 2009
This material is available primarily for archival purposes. Telephone numbers or other contact information may be out of date; please see current contact information at media contacts.Birds' alarm calls serve both to alert other birds to danger and to warn off predators. And some birds can pull a ventriloquist's trick, singing from the side of their mouths, according to a University of California, Davis study.Full Story
University of California, Davis
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