- Joined
- Jan 7, 2008
- Messages
- 5,790
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- Earth
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- orbides.org
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- she/her
Reminds me of the ultrasonic rodent repellents which are popular around here in all kinds of malls and shops. They are supposed to be inaudible to humans, but i happen to have an abnormal left ear which can hear up to 19KHz or so. I can see why it works on rodents - the skull-drilling intermittent whine they give out is pretty darn annoying.One of the farmers nearby set up a bird repeller gas cannon
Fortunately, i don't have to stay around.