Today, save on the highly rated Gifts of the Crow: How Perception, Emotion, and Thought Allow Smart Birds to Behave Like Humans by John Marzluff and Tony Angell. The Kindle download for the book is $1.99 today, a big saving compared to the listed print price of $18, and previous Kindle listed price of $11.99 (as of 3/3/15).
Crows are in the corvid family, which also includes jays and magpies. This family is known for their extreme intelligence. For a quick look at how clever corvids can be, check out this article to see how a Eurasian Jay wasn't fooled by different sleight of hand magic tricks -- unlike humans who observed the same tricks.
Magic Tricks May Fool You, but These Birds Can See Through Them
Note that Amazon sale prices fluctuate frequently and this sale can end at any time. Act fast to get this great price for the popular book in digital format.