Futurity.org – Birds shout out to friends and enemies
December 4th, 2009
Birds like this yellow rumped warbler sound alarm calls both to warn friends of a threat and to tell predators, “I’ve seen you.” Some of the birds were able to project a call in one direction while their beak was pointed in another, …
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Futurity.org – Birds shout out to friends and enemies
UC Davis News & Information :: Birds Call to Warn Friends and Enemies
December 3rd, 2009
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 UC Davis study.
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UC Davis News & Information :: Birds Call to Warn Friends and Enemies