All these spruce are in a huge cow grazing area in the Alps. If left unattended this area would become a forest sooner or later. To make sure the cows will have enough grass in the future the farmers cut out small trees every once in a while. But the area is so large, they cannot do it all usually. So it is easy to get a permit to 'help the farmer'.
I do undersatnd that many viewers, while fascinated how we do this, cannot possibly see a bonsai in these spruce. Donn't worry, they will become great bonsai, some close to world class. But it will take ten years or more.
To believe it go there: spruce that cae from exactly this area