hello everyone,

you might be interested to learn how birds can identify good seeds and nuts
without first opening their shells to inspect the contents. a recently
published study found that wild Mexican jays can identify which seeds and
nuts are the most nutritious by weighing them in their beaks and by rapidly
clicking their beaks on the shells and listening to the sound created:

http://gu.com/p/498tc/stw

happy birding,

--
GrrlScientist
Devorah Bennu, PhD
birdologist at gmail.com
http://twitter.com/GrrlScientist
http://www.theguardian.com/science/grrlscientist
<http://www.guardian.co.uk/grrlscientist>
http://birdnote.org/contributor/grrlscientist
http://www.scilogs.com/maniraptora/
*sunt lacrimae rerum et mentem mortalia tangunt. *[Virgil, Aeneid]
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