Intelligence of the Raven Bird~God is truely amazing!

Intelligence
See also: Bird intelligence and Corvidae#Intelligence

At the Norwegian Island of Runde
“
Crows, ravens, magpies, and jays are not just feathered machines, rigidly programmed by their genetics. Instead, they are beings that, within the constraints of their molecular inheritance, make complex decisions and show every sign of enjoying a rich awareness.
”
—Candace Savage[51]
Common Ravens have among the largest brains of any bird species. Specifically, their hyperpallium is large (See avian pallium). For an avian, they display ability in problem solving, as well as other cognitive processes such as imitation and insight.[51]
One experiment designed to evaluate insight and problem-solving ability involved a piece of meat attached to a string hanging from a perch. To reach the food, the bird needed to stand on the perch, pull the string up a little at a time, and step on the loops to gradually shorten the string. Four of five Common Ravens eventually succeeded, and "the transition from no success (ignoring the food or merely yanking at the string) to constant reliable access (pulling up the meat) occurred with no demonstrable trial-and-error learning".[52]
Common Ravens have been observed to manipulate others into doing work for them, such as by calling wolves and coyotes to the site of dead animals. The canines open the carcass, making it more accessible to the birds.[51] They watch where other Common Ravens bury their food and remember the locations of each other's food caches, so they can steal from them. This type of theft occurs so regularly that Common Ravens will fly extra distances from a food source to find better hiding places for food.[53] They have also been observed pretending to make a cache without actually depositing the food, presumably to confuse onlookers.[54]

Dilapidated NIKE Missile radar dome in Alaska with an evening roost
Common Ravens are known to steal and cache shiny objects such as pebbles, pieces of metal, and golf balls. One theory is that they hoard shiny objects to impress other ravens.[55] Other research indicates that juveniles are deeply curious about all new things, and that Common Ravens retain an attraction to bright, round objects based on their similarity to bird eggs. Mature birds lose their intense interest in the unusual, and become highly neophobic.[56]
[edit] Playful behavior
In recent years, biologists have recognized that birds engage in play. Juvenile Common Ravens are among the most playful of bird species. They have been observed to slide down snowbanks, apparently purely for fun. They even engage in games with other species, such as playing catch-me-if-you-can with wolves and dogs.[57] Common Ravens are known for spectacular acrobatic displays, such as flying in loops or interlocking talons with each other in flight.[58][59]
They are also one of only a few species who make their own toys. They have been observed breaking off twigs to play with socially.[60] (Another species is dolphins who blow bubbles to play with.)