This bird deterrent system does not seem to work very well.
martlet
Keep Deer Out of Your Garden with Nite Guard?
Just Do It Yourself!
Mastering Humane Wildlife Control: Insights and BirdBarrier Innovations with Stephen Vantassel
pestgeek
SALE! Solar Infrared Motion Sensor Alarm Detector Waterproof Outdoor Animal Repeller
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Bird speak
fadydodo