The notion that crows and ravens might reward humans who provide them food motivated the title of the book Tony Angell and I recently published (Gifts of the Crow; 2012 Simon and Schuster). When I ...
The American crow, from the corvid family of birds, is one of the most intelligent animals living today. Research into crows’ level of intelligence is relatively new, but people have known for ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results