Local name especially in the Austrian wine-growing region Styria and also in Slovenia (here Klopótec) common noise device, which is set up in the vineyard as a scarecrow. Here the Klapotetz is also the wine-growing landmark. The Klapotetz was mentioned in a manuscript as early as 1797. From 1832 there is a pictorial representation of a castle near Celje with a Klapotetz. Also the one dealing with viticulture Archduke Johann (1782-1859) owned a Klapotetz at his winery in Pickern.
The wheel, which is mostly made from cherry or plum wood, consists of bobbins which, due to the wind, generate a clattering (slav. Klaptati = clatter) sound as well as ultrasound tones, and thus Schad birds to evict. In Austria the wind turbine usually has eight blades, in Slovenia only six.
The largest Klapotetz in the world has been in Schloßberg (Leutschach) in Styria since 2010. It has a 9 m deep concrete foundation, is 19 m high and weighs 25 tons. These devices are traditionally put into operation and closed on Jakobitag (July 25th) Martini (November 11th) closed again. The device is part of the Biological crop protection used. See also under Bauernregeln and Customs in viticulture,