How it works
Guano-Be-Gone is formulated to be an offensive smell to birds. To mammals, the smell is similar to grapes, and is barely noticeable, however birds will move away from the area and will not return if used regularly.
It is effective on almost all birds including pigeons, swallows, miners, fantails, and more. (ineffective with chickens and pukekos)BUY GUANO-BE-GONE