Listen to the Three-Alarm Jay

DanyC submitted, created time 11 months 4 weeks (sciencenow.sciencemag.org)

This is an impressive accomplishment for the jays,and they have a third call--a combination of low and high sounds--that distinguishes a hunting hawk in the sky that is looking for prey from a hawk that has spotted its next meal and has begun a downward attack dive.
Woo...such alam can do a lot of thing than we ever thought before.

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