This is a machine that is filled with a liquid that gets periodically sprayed out. The liquid is a respiratory irritant for birds that fly or roost around the area. This is to help deter birds from wanting to hang around the site. This unit must be plugged in at all times to work effectively. Depending on the frequency of applications, the fluid product will need to be refilled on a monthly or bi-monthly at an additional cost.


                                                                              Courtesy of BirdBuffer