> The loud noise and dazzling illumination of the lights is thought to disorientate the birds, who are unable to escape and end up being sucked into the machines in large numbers.
There’s a lot of innovation to be had here and as you said a financial incentive would be more than enough to get the farmers to cook up these kind of schemes.
A solution to what? There's not problem besides "how do i make more money out of this"
I doubt these machines are silent already.
I can't eval the problem with this data and never had heard of it before. Nor had seen any remains of birds in almazaras but my experience in this case is limited. Maybe is a true problem locally and is good to care for it... something does not fit in this narrative. Maybe the migrating birds are just too tired to escape?.
I would look for some hidden interests. The history is very strange.
In any case just put a red light in the extreme of the vacuum tube, and you'll have a cheap and pretty simple solution. Birds will avoid the tube if they can see it coming closer.