not just decoration

I have seen with my own eyes how the real heron had already spied his dinner and ended up in our backyard. The real herons went as usual towards the pond but when he caught sight of his fellows on the other side of the pond, he at once took to flight. There has thus been a certain effect. After all, to many ponds you see those plastic heron, which I thought so far, it is pure decoration.

How long such a deterrent, I can not say because I have the Scardraft installed on recommendation of Koihändlern (water jet with motion). For years neither herons, cats or other predators now coming more to the pond. The loss is zero.