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birding-aus
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birding-aus
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| Subject: | Re: Cat warning device for backyard birds. |
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| 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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