On 24/06/2011 03:39, YES NOPE9 wrote:
> I am dealing with an urban fox issue.  Two double lots are side by side. =
 On them are a house and a duplex.  There are wood piles and some other pla=
ces that foxes can hang.   Everything was foxy cool until this spring.  Now=
 there are 6 foxes hanging out around here.  And today, one was sitting on =
my hot tub cover, scratching away his fleas.  I was 3 meters away and mr/ms=
 fox did not care.  The fox sauntered off reluctantly when I made some loud=
 noises.
>
> So for a variety of reasons, the foxes must go.  Being a very ethical per=
son, my first thought is to make them someone else's problem.  Is there a c=
hemical that will speak to the foxes " go away , 20 blocks south looks like=
 a really good place to move to."   Or is trapping the only realistic appro=
ach.  Or will ultrasound chase them away... or shooting tennis balls at the=
m.  I would not want one of them to have a seizure while laughing at me.
>
> ( By the way, calling government agents in on the job is a no go..... I n=
ever willing get involved with the gov )
>
> 99guspuppet

My first thought is ultrasound - easy to implement a test rig and a=20
(relatively) humane solution.
My Pa recently had a problem with horses eating his willow trees, so I=20
started "designing" (5 mins with a pic dev board and old speaker :-) ) a=20
little "Hossaway" based on a 10F, not tried it yet though. We are a=20
little concerned about startling the horses too much, though this=20
wouldn't be a problem with foxes.
I guess a 555 timer would do fine, or any audio range oscillator. I=20
would find out what the upper limit of a foxes hearing, then produce a=20
 >100dB(?) note of a couple of kHz below - there is info out there on=20
the net concerning ranges and what is unpleasant for different animals.



--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.