Kites I would have thought would work, but................
Maybe 6-8-10 years ago bird-shaped kites that had a very fast and random flight pattern - a very clever, but presumably simple design, as most clever things are - were very popular over crops that are (wood) pigeon magnets. I don't recall seeing one for quite some while, near certainly not since before C19, and perhaps they only persisted for a year, maybe two?![Huh? ???](https://www.pacificbulbsociety.org/pbsforum/Smileys/akyhne/huh.gif)
I haven't heard a gas gun for umpteen years either (although I seem to recall mutterings of banning them due to noise nuisance).
If anything is effective and cost-effective, it tends to hang around.
Maybe 6-8-10 years ago bird-shaped kites that had a very fast and random flight pattern - a very clever, but presumably simple design, as most clever things are - were very popular over crops that are (wood) pigeon magnets. I don't recall seeing one for quite some while, near certainly not since before C19, and perhaps they only persisted for a year, maybe two?
![Huh? ???](https://www.pacificbulbsociety.org/pbsforum/Smileys/akyhne/huh.gif)
I haven't heard a gas gun for umpteen years either (although I seem to recall mutterings of banning them due to noise nuisance).
If anything is effective and cost-effective, it tends to hang around.