The SECRET:
Birds have a vocabulary. Yes, There are around 20 or more "words".
If you can find a way to imitate, copy or download the "word" for predator present, flee for your lives. It works well. They do not come back until the next day. That's when you play it again. 3 or 4 days and no more will they frequent the tree. Until next season.
To obtain the "word" Its a screeching sound that the birds make. Particularly when a bird is trapped, caught or hurt. Record the sound and play it to them. Its easy enough to record the word. Its a different matter to get a bird to make the sound.
This is not a well known strategy. It is very effective.
Its not necessary to kill so many birds as what many farmers do. Many people who award licenses to farmers are not aware of alternate methods.
It is easy for me to prove it works. I do this sometimes with Seagulls. They are at times so bold and sit on the table. Catch one, it screeches, the rest flee. Let it go and the gulls do not return for the rest of the day.
The shotgun type bird scarer; is not bad but I know how it can be much more effective. Without harming birds ofcourse.
I have had birds inadvertantly become trapped in netting. Had a recorder handy and recorded the screeching while I handled the trapped bird to release it. Next day as they came to feed. Recorded word played and they took off explosively.
Its not legal to intentionally trap protected birds. However you may use netting to protect your crop. If a bird becomes trapped inside you must make an effort to release it. Have welding gloves on. And a recorder handy.
Cheers
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