Crows and magpies are the smartest birds on earth. European magpies pass the mirror test, something very rare animals and only children over 18 months do: http:

Crows and magpies are the smartest birds on earth. European magpies pass the mirror test, something very rare animals and only children over 18 months do: http://www.newscientist.com/article/dn14552-mirror-test-shows-magpies-arent-so-birdbrained.html#.U9K0T1YRZGI http://www.newscientist.com/article/dn14552-mirror-test-show...