You bet; the bats, mice and dogs complain constantly.
Charlie
On Wed, Nov 6, 2013 at 1:19 PM, Chris Barker <ftog@xxxxxxxxxxxxxx> wrote:
> Wow! That’s a great way to pollute the countryside with noise.
>
> Chris
>
> On 6 Nov 2013, at 17:39, Ken Norton <ken@xxxxxxxxxxx> wrote:
>
> >> Those little plastic gizmos that emit an ultra-sonic whistlr at speed?
> >> I've seen deer freeze at the aproach of vehicles with the horns.
> >
> > Statistically, I don't think it makes a bit of difference. I've run
> > with them and without them and there is no significant difference in
> > behavior or response. (I've busted them off twice impacting deer).
> > There is a lot of antidotal evidence of their functioning, but I think
> > the only ones really promoting their success are the companies that
> > sell them.
>
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