North American Fruit Explorers mailing list at ibiblio

[Tom Olenio <tolenio@sentex.net>]

Hi,

That one is a visual scare, the klapotetz is a noise maker, the noise is just 
driven by the wind.

The hammers are made of cherry wood and the sounding board (clappers) from 
beechwood.

It is supposed to make ultrasonic (and sonic) noise to scare birds.  My guess 
is that the
vibrations coming down the main shaft, going deep into the ground would 
bother digging critters as
well.

In the images I have seen, these things are monsters in size.  The diameter 
of the windmill must be
16 to 24 feet.

However, could the klapotetz be made with simple 12v solenoids driving the 
hammers on the clappers?

Not a lot of information to be found, other than they are still used in 
Europe.

Later,
Tom

Mark Garrison wrote:

> > Does anyone know more about the Klapotetz, and how it has
> > been used in Europe, since the time of the Romans to drive
> > off birds from crops?
>
> For an American version, see http://www.birddamage.com/windbg.htm
>
> Mark Garrison  RI zone 6
>
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--
Thomas Olenio
Ontario, Canada
Hardiness Zone 5b