In simple terms we do not mess with the birds’ eyes or ears, we mess with their feet.
By introducing certain patterns of resonance to the structure itself at certain intervals and timing we make the site unattractive for roosting and nest building. In a matter of days, the overnight roosting population goes to zero, and stays there! Additionally, in 60-90 days the rain and Mother Nature takes care of cleaning the bulk of the mess since the source of the problem has been removed.
Instead of simply putting an umbrella over the problem with a canopy, remove it! By removing the canopy you have also removed the liability it creates in a storm.