crow's intelligence *video*

It seems that crow's intelligence is a topic about which there likely is not much information, but then someone gave me this link:

language.psy.auckland.ac.nz/crows/gavin-home-page.htm

with many references to papers about crow's intelligence, and most of them can be obtained in pdf format. Some of these are also about tool-making by crows, so such phenomenon doesn't seem to be so rare, the peculiarity of the aforementioned video is thow that a crow made a tool from wire, a material which has some properties that nothing in the nature doesn't exactly have, such as nothing in nature can be bent the way the wire can be. This may prove that the ability to make such tools is not an inborn instinct. The question is whether the crow in that video invented the way how to bend a wire in the way useful for it during that experiment, or it was a knowledge which the crows passed to the young, and thus it might been once learned by some cows just by imitating the activities of the people, in which case this experiment doesn't prove the presence of the ability to predict. Unfortunately there is no information about that crow, ie whether it has been together with older croes and the way how to bent the wire exactly that way for these purposes might been taught to him by other crows etc. This is very unlikely though, but the possibility remains, and they should be much more precise in the future in doing and documenting such experiments.