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Light protection to deter birds at a vineyard.
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Previously:
1950s Porsche vineyard tractor - photo
Lanzarote craters vineyards - photos
Vineyard monorail - GIF
Vineyard shoot thinner - GIF
to the target then launch a stinger missile. No more bird.
In a few years they will discover the laser had a strange effect on the grapes...
So would stinger missiles LOL For really large birds they cold fire ICBMs with 20 Kiloton thermonuclear warheads no such thing as overkill in my book.Quote:
Originally Posted by IntheGroove
I looked into this and I found that the published success rate was only about 70%.
It is a green laser, so I decided to get a gree laser pointer to see if I could tell if there was any effect I could determine. I was able to hide well enough that birds would land and then I would fire up the laser and focus on the bird's head. I was unable to see any effect. The birds didn't even move to avoid the light and when someone with me looked through a spotting scope, they saw I was able to hold the spot on the bird's eye for seconds. I call BS on this. With a powerful enough laser that kills the birds - maybe...
At one time we had 15 wild Peacocks that moved into our garden and started to use our terraces as their toilet. Squirting them with a jet of water moved them off only temporarily, so got a green laser to get them to move but it had very little effect. Neighbours dog finally repeatedly chased them off and they got the message.
That's a long way from the cannons and traps that were the go to for vineyard bird control. You had to wait to put the cannons in because the birds would get used to them. *BANG*! and they'd leap into the air and settle back on their snacks. Typically, they'd peck a grape, suck some juice and peck another eventually ruining the whole bunch. Some growers installed traps, just a downward tapered opening to narrow to fly up through. Many growers would just cage them and relocate them. I did see one grower,an early promoter of organics in the 1980s, in the cage with a tennis racket swinging like a madman. It was very entertaining.
When laser pointers first became affordable, I aimed one at a housefly with the fly facing me. I left in on for a few seconds and then tested to see if it could still see me. It could. I thought maybe the laser would either destroy its sight or temporarily inhibit it. It didn't work.
My red and green laser sights both came with warning notices “Don’t point at an animals eyes”.