Intelligence of Crows-Evolutionary Relationships and Learned BehaviorsEdit
Research shows that crows are very intelligent animals, and crows also possess the ability to recognize faces (masks were used in scientific studies) (Fleming, 2010).
Very interesting video to watch:
Another site to check out:
Fleming, S. (Producer). (2010, October 24). A murder of crows. Nature [Television series episode]. Canada. Retrieved from http://video.pbs.org/video/1621910826/ (Not certain on production studio location.)
Nature. (2013, October 30). PBS documentary: A murder of crows. Retrieved from http://www.youtube.com/watch?v=QpnoMeb8FSE
Image credit: http://www.cooperativecrows.com/species.htm