men­tal­floss.com: 10 Fa­sci­na­ting Facts About Ra­vens

When it co­mes to in­tel­li­gence, the­se birds rate up the­re with chim­pan­ze­es and dol­phins. In one lo­gic test, the ra­ven had to get a han­ging pie­ce of food by pul­ling up a bit of the string, an­cho­ring it with its claw, and re­pea­ting un­til the food was in reach. Many ra­vens got the food on the first try, some wi­thin 30 se­conds. In the wild, ra­vens have pu­shed rocks on peo­p­le to keep them from clim­bing to their nests, sto­len fish by pul­ling a fi­sher­men’s line out of ice ho­les, and play­ed dead bes­i­de a be­a­ver car­cass to sca­re other ra­vens away from a de­li­cious fe­ast.

If a ra­ven knows an­o­ther ra­ven is wat­ching it hide its food, it will pre­tend to put the food in one place while re­al­ly hi­ding it in an­o­ther. Sin­ce the other ra­vens are smart too, this only works so­me­ti­mes.

wür­de mich ir­gend­ei­ne macht dazu zwin­gen mich für ein haus­tier zu ent­schei­den, ich ent­schie­de mich nicht für ei­nen hund oder eine kat­ze, son­dern ei­nen ra­ben. er­satz­wei­se ein grau­pa­pa­gei. (via)