We are happy to announce that both
RED and
GREEN Avian Dissuaders are now available.
(Look under "Products" for specifications,
features and pricing)
Customers have been asking for a green Avian
Dissuader for awhile now. I was opposed because I
understood that there was no real difference in
effectiveness between green and red. However, after speaking
with some customers who purchased the Lord
Ingénierie hand held green laser (cost about $5,400) and
wildlife biologists I trust at USDA/APHIS/Wildlife Services
I became convinced that there were indeed advantages to
using a green laser against birds in certain circumstances.
Initial tests indicate that diurnal birds
(Starlings, Pigeons, Grackles, etc.) seem to react better to
green. I have also noticed that raptors (Eagles, Hawks, etc)
seem to react more to green - however my testing has been
limited so far to Falcons, so I am not certain about that.
The green laser
allows me to work birds in higher ambient light conditions
than red allows - both before dusk and after dawn. This is
because the green beam spot is visible under higher light
conditions. However this doesn't mean that the green laser
will work in bright daylight.
Pricing for the green laser is higher than
red because the materials are more expensive. Yes, I know
there are inexpensive laser diodes out there, but they
require more power to run and are often unstable and require
a separate cooling circuit to keep them from overheating.
The diode I am using will support large swings in
temperature while requiring minimal current - it is very
efficient and will allow the green Avian Dissuader to be
used just like the red.
Even though the green laser appears to
perform better than the red - we still feel that the red
Avian Dissuader is an excellent solution for many
applications - especially those that involve aquatic or
night flying birds.