Re: Cat warning device for backyard birds.

Subject: Re: Cat warning device for backyard birds.
Date: Thu, 21 May 1998 08:47:21 +1000
Does anyone know anything about an electronic device that was being sold
in the UK 3+ years ago.
You were supposed to be able to just put the thing in your garden and it
would then deter cats from approaching within ? 20 metres. Perhaps it
emitted a high-frequency sound.

Michael Norris

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