Worldwide interest has been created by the airfield bird dispersal system “Sappho,” being developed by The Trix Electrical Co.Ltd in collaboration with the Ministry of Aviation. The system utilizes specially recorded bird alarm and distress calls. So, 56 years ago, started a story in EW’s edition of September 14th 1960 The story continues: Recordings ...
from ElectronicsWeekly http://www.electronicsweekly.com/blogs/mannerisms/memory-lane/keeping-the-birds-at-bay-2016-03/
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