Ira7
Doctor of Teleocity
Have a flag made with this on it:
Now that you mention it....I don't recall EVER seeing any pigeons in any discos back in the seventies.From Hunker....
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Sound Deterrent
Birds, like most creatures, can get used to certain sounds and ignore them after a while. Kelly Cross, writing in "Pollution Engineering," said sound deterrents must "vary in frequency, duration and sequence." Arranging several CDs so they click against one another in random sound patterns helps keep birds away.
Visual Deterrent
For the best effect, CDs strung in a tree must have both a sound quality that is disturbing to birds and a visual presence that wards them off. This visual presence ideally would include movement, which is why the familiar plastic owl sold in home and garden stores eventually loses effectiveness. Because the owl never moves, birds get over being afraid of it. Mirrors, which have a reflective quality similar to CDs, have also been used to deter birds, including crows nesting on power poles and short-circuiting the conductors. "The Aberdeen Press and Journal" noted that crows are afraid of their own reflection, so the mirrors "fool the birds into nesting somewhere safer."
Innovative Deterrent
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CDs and disco balls can serve the same bird deterrent function.
Some crafty vineyard owners who were losing a great deal of their crops to of birds used a deterrent similar to CDs. They hung mirror-covered disco balls in the vineyards. Rod Windrim told the "Newcastle Herald" that the movement of the disco ball "shoots shards of light bouncing across the property," scaring away the birds. A group of CDs fastened together in a circle or swinging in the breeze can do the same thing."
Maybe in England.......Now that you mention it....I don't recall EVER seeing any pigeons in any discos back in the seventies.![]()
You're right....the Pigeon Sisters. (Odd Couple reference)Maybe in England.......![]()
Firecrackers?Don't know if they work with birds, but how about an ultrasonic pest repellent?
Yoko Ono CD on endless loop?