Mike,
It may work for a while. but it is virtually impossible to control
birds, long term, when they become pests. Corvids are very intelligent
and they will soon realise that it is only a noise and they will come
to no physical harm. I would say that it would be as effective as
ultra-sonic 'roo guards for cars
Corvid researcher, such as Bernd Heinrich would no doubt have a good
laugh about it.
The CD will no doubt be a nice little earner for the vendor. There are
probably enough people out there who are no doubt alarmed at the
thought of the dangers from the "ever increasing number of crows> It
is surprising the the web site doesn't have a few scenes from "The
Birds".
Cheers,
Carl Clifford
On 10/02/2012, at 1:39 PM, Michael Tarburton wrote:
G'day B-Aus Subscribers
At www.crowaway.com.au/ somebody is offering a CD for $25 that is
claimed to chase crows away.
Does anyone know anything about how this works and whether it works
for Ravens?
I am not wanting to use it just wanting to know a bit more about the
methodology.
Cheers & Happy swift watching
Mike
===================
Michael Tarburton
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