Razzo il Rondone

Does a swallow make or not make a spring? Razzo the Swift doesn’t know exactly what spring is, but he knows that at a certain point his wings start to quiver and he has to leave. For where? And why? Maybe he is very curious or maybe we are the ones who call him from afar. His life is not easy and he encounters enormous difficulties precisely because of us. But knowledge is the first step to avoid mistakes, so… come on… let’s help Razzo!