How do you keep birds out of Butler building?

There are many ways to keep birds out of and off of a building, make sure outtake vents and chimneys are clean and clear of nests, install wire net on rafters so birds can not land to make a nest and there are roof spikes that work to keep birds away. The most humane way to get rid of birds is using a bird sound recording that can deter birds from hanging around for blocks.