June 24, 2005

Are they talking about you?

Researchers discover that the number of "dees" in the chick-a-dee-dee-dee call of the black-capped chickadee, as well as other factors, gives information about predators to the flock.

"These birds are passing on way more information than anyone ever dreamed possible, and only by carefully looking at these calls can we really appreciate how sophisticated these animals are."

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