Ultra-sonic bird deterrents
Bill McBride
Hi folks
I live on a small acreage on which my wife and I have planted 20'ish various
fruit trees. Last year they fruited well but all we ended up with was a lot
of very fat rosellas and such. I had thought of making a bird proof
enclosure around them but an enclosure that is 60m x 40m x 4m high is not
cheap. Does any body know the ins and outs of ultrasonic bird deterrents?
Cost, effectiveness, were to get them sort of thing.
TIA
Bill
Roger Riordan
Sally bought a unit (Yardguard?) from the Innovations catalogue to try
& deter cats and dogs from our garden. Annoys children on the lowest
frequency setting, but very little evidence it deters any of our 4
legged friends. Certainly no effect on possums, and don't think it
does anything to birds either.
Roger Riordan
Ivan
I have a customer who has installed ultrasonic "shoo roo's" to prevent
the local kangaroo and wallaby population from making a meal of his lush
garden.
First, they are purported to be totally inaudible to humans and hence
not bother us.
Sorry, but they bothered my laborer and myself, it took an hour or so of
working in their vicinity to produce headaches and an awareness of the
"signals" highest intensities.
Second, according to my client, after three to four weeks of staying
away, the biggest ones "braved it out" and returned to feed. After they
had been back for a few days the majority of the rest followed. They are
now trying intermittent use.
I would ask around for other opinions before spending good cash on them.
Ivan.
John Savage
>I live on a small acreage on which my wife and I have planted 20'ish various
>fruit trees. Last year they fruited well but all we ended up with was a lot
>of very fat rosellas and such.
Make some jam. Rosella Jam is delicious! sorry, couldn't resist. }:->
> I had thought of making a bird proof
>enclosure around them but an enclosure that is 60m x 40m x 4m high is not
>cheap. Does any body know the ins and outs of ultrasonic bird deterrents?
>Cost, effectiveness, were to get them sort of thing.
I can't help here. But perhaps playing a distress call of a particularly
destructive species might work. For a day or two, anyway. :-/
Draping fine nylon netting over the trees may suffice. Birds alighting
on the netting might be scared off by the sensation of having their
claws tangle in the net. This might not work for little silver-eyes.
--
John Savage (for email, replace "ks" with "k" and delete the "n")
Jan Svensson
I have had the same problem with birds in my garden.
I have constructed and are now selling a device for helping that problem.
I have my self tested some other equipment including ultra-sonic with
no or poor effect all birds doesn´t seem to respond to ultra sonic.
Take a look at my site.
http://home3.swipnet.se/~w-32402
Best regard´s Jan Svensson
Bill McBride wrote:
> Hi folks
>
> I live on a small acreage on which my wife and I have planted 20'ish various
> fruit trees. Last year they fruited well but all we ended up with was a lot
> of very fat rosellas and such. I had thought of making a bird proof
> enclosure around them but an enclosure that is 60m x 40m x 4m high is not
> cheap. Does any body know the ins and outs of ultrasonic bird deterrents?
> Cost, effectiveness, were to get them sort of thing.
>
> TIA
>
> Bill