Birds react to acoustic stimuli. Several acoustic devices make use of that.
Acoustic bird control devices replay attacking calls from predator birds, mixed with frightening calls from prey birds.
The generated sounds are on the pain threshold of hearing and this scares birds away from the surrounding area.
Blank-firing systems repel birds with intensely audible blank shots. We offer systems with almost no habituation.
Birds are very receptive to air pressure waves. A very effective and harmless way to deter birds from large areas.