College of William and Mary

John P Swaddle

Mark K Hinders

A combination of a visual warning cue and a conspicuous auditory warning cue acts synergistically to reduce bird strike frequency against a man-made structure. Methods and systems are described for providing said combination of warning cues when a bird is within a warning zone. The auditory warning cue entails at least two separate sonic pulses within one second when the bird is within the warning zone, and is defined by an intensity-weighted frequency average of between 6 kHz and 18 kHz, and an intensity at a location within the warning zone of at least 70 decibels.

Systems and methods for reducing the risks of bird strike

One or more sound producers disrupt auditory communications among animals in a defined locale. The sound is defined by (i) a frequency range commensurate with a communication frequency range used by at least one species to carry out auditory communications, (ii) colored noise in the frequency range, and (iii) a sound level of the colored noise in the frequency range at a perimeter region of the defined locale not to exceed approximately a peak sound level associated with auditory communications of one or more species.

Growing community of inventors

Williamsburg, VA, United States of America

John P Swaddle