Picture I http://kimmontaidearvioita.blogspot.com/p/thinking-about-birds-and-use-of-them-as.html Kimmo Huosionmaa We all have heard the stories of the ravens of the Tower of London, and maybe those stories are true. Ravens and other crows are very intelligent birds, and they can teach to look for the people like dogs. But the crows are also very suitable birds for the searching operations. Those birds are very usual, and that's why nobody would suspect anything if some of them would be trained to search the things like explosives and drugs. The training of those birds happens with the same methodology as the training of dogs. The birds would allow smelling the thing, what is searched, and after that, it would be given the food, and that would make this bird think that the thing, what it would be eaten and the food would be the same thing, and then it would start to look for those materials. In the real life, the narcotics can cause the similar effect, what we could see ...