On The Fly Services, Inc. provides bird exclusion services for commercial and residential structures. We use humane exclusion techniques to keep the Birds from coming back.
 Control and exclusion of pigeons on the exterior surfaces of buildings often requires considerably more effort. The most effective and permanent methods of control involve structural modifications which either physically exclude pigeons from the preferred surface, or make it difficult for the birds to rest comfortably on the exposed building surfaces. Physical exclusion can be accomplished by installing weather resistant netting, wire screening, sheet metal, or other materials, in a manner that will restrict access to the roosting sites. A grid of heavy gauge monofilament line spaced at six-inch intervals may also be used to create a fence that will interfere with the birds’ normal flight pattern to the roosting area. 
One of the most effective, although expensive methods for preventing roosting birds is the use of a commercially available bird barrier system, consisting of a series of metal prongs or porcupine wires along a metal base that can be attached to a horizontal roosting surface. The needle-like strips of stainless steel act as a prickling fence to exclude birds permanently without harm.