Cry of the Hawk
Use a CD, media player or similar sound system. Install speakers as high as possible and away from infestation / roosting areas. Install additional speakers + visual devices at strategic locations to discourage potential roosting elsewhere. Camouflage speakers using wood siding, tree bark, etc. Combine with visual devices
Cry of the Hawk CD
Recording of attacking hawk.
All scare products work best when used in combination with each other as they increase the birds fear and flight response to the perceived predator threat.
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