"Stephen Wolstenholme" wrote .

wrote:

The elderly in particular use a cat-deterrent in their garden. It is a
small apparatus with a speaker attached to it. It produces a
high-pitched bleep of more than a 100 decibel. The sound is mostly
only audible for children, youngsters and people with ears that are
still good. Many cat-deterrents use the same noise as the Mosquito.
The sound causes pain in the ears, headache, and ringing in the ears.
If you have any complaints consult your GP and make mention of it on
social media!


In my experience ultrasonic cat deterrents don't work. The cats ignore
them and some come to see what the noise is..

In my lifetimes experience with cats the best deterrent to the neighbourhood
cats is a male cat of your own. Just don't get them neutered too soon or
they won't get the male cat features which is the deterrent.

--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK