fidowanttobe
Platinum Member
I'm serious. These work very well. Batteries last about a month or can be plugged in, I put them out early spring to keep barn swallows from making mud nests on my concrete building at work. Very large commercial building, 2 on each outside wall early in the spring and no nests. Otherwise I have a major battle.
www.solutionsstores.com

Balcony Gard Ultrasonic Bird Repeller 110V
The Balcony Gard is an electronic device that emits a high and low pitched frequency that repels many types of birds and rodents without the use of chemicals or poisons.