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2. Bird scarer - Wikipedia

   en.wikipedia.org/wiki/Bird_scarer

   Ultrasonic devices are static sound-emitting bird deterrents, which, in theory, will annoy birds to keep them away from enclosed or semi-enclosed areas. Ultrasonic scarers are not harmful to birds, however, there is debate around birds' ability to hear these frequencies at loud enough decibels.

3. Acoustic harassment device - Wikipedia

   en.wikipedia.org/wiki/Acoustic_harassment_device

   Acoustic harassment and acoustic deterrents are technologies used to keep animals [1] and in some cases humans away from an area. Applications of the technology are used to keep marine mammals away from aquaculture facilities and to keep birds away from certain areas (for instance in the vicinity of airports and blueberry fields).

4. Bird control - Wikipedia

   en.wikipedia.org/wiki/Bird_control

   There are also ultrasonic avian deterrents, which are inaudible to human ears. [2] Ultrasonic bird repeller, 2008. In 2013, Dr. John Swaddle and Dr. Mark Hinders at the College of William and Mary created a new method of deterring birds and other animals using benign sounds projected by conventional and directional (parametric) speakers. [8]

5. How To Keep Squirrels Away From Your Home And Garden - AOL

   www.aol.com/keep-squirrels-away-home-garden...

   “You can’t keep squirrels completely away from your home and garden,” says Michael Mengak, PhD. “But you can take a few steps to reduce the damage they can cause.”

6. Scrub Hub: Here's how to keep birds from flying into your ...

   www.aol.com/scrub-hub-heres-keep-birds-090218868...

   The Cincinnati Zoo & Botanical Garden uses a grid of dots on its African lion exhibit to discourage birds from striking the windows. This is one of several methods that experts recommend to help ...

7. Cat repeller - Wikipedia

   en.wikipedia.org/wiki/Cat_repeller

   A statistical survey into customer satisfaction levels with ultrasonic deterrents concluded that 80% of owners expressed satisfaction with the results of ultrasonic deterrent devices. [ 3 ] The Royal Society for the Protection of Birds (RSPB), has endorsed a commercial product called "CatWATCH", [ 4 ] for which it receives 2% of the wholesale ...