Thursday, October 11, 2012

Crows are now considered to be among the world's most intelligent animals.

Some of the many vocalizations that crows make are a "Koww", usually echoed back and forth between birds, a series of "Kowws" in discrete units, a long caw followed by a series of short caws (usually made when a bird takes off from a perch), an echo-like "eh-aw" sound, and more. 
From Wikipedia

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