Hawaiian Crows Used Tools In The Wild, Study Shows

In a discovery that accorded more brainpower to birds than previously thought, researchers in New Zealand found in 2002 that New Caledonian crows made tools to forage for food, and also passed on the knowledge for the craft to other individuals, even across generations. These birds, whose tool use is comparable to or better than most primates, have long been thought to have complex cognitive ability whose evolutionary origins are largely unknown.