Friday, August 7, 2009


Rooks are as smart as Archimedes--they, too, understand displacement.


  1. So cool! Thanks for sharing that!
    still hoping u might join us for some birding Aug 15th

  2. This bird family never ceases to amaze me, with the largest brain size to body size ratio. On, New Caladonian tool-using Crows- in recent research- show to be able to figure out the sequence of three tools to achieve a task.

    For joining a neat club of admiration for American Crows and Common Ravens, log onto, the American Society for Crows and Ravens. Membership is free, with a member-written newsletter, the CorviChronical. Just email your desire to be a member- and your contact info.- to:

    This comment was from Grant Stevenson--blogspot wasn't allowing him to post comments for some unfathomable reason.