Feral pigeons are not protected by federal law. Monitoring Pigeons are relatively easy to spot and identify. Visual observation is all that is necessary to determine whether pigeons have become established in an area. In order to successfully control pigeons, it is important to realize that feeding them will only encourage their inhabiting a site. Therefore it is important to eliminate all sources of food including hand feeding.
Exclusion is a primary means of managing pigeon problems.
Blocking access to indoor roosts and screening nesting areas by screening vents, eaves, and windows will reduce the rate of establishment of pigeons into an area. Plastic or nylon netting can be used to discourage roosting as can changing ledge angles to over 45 degrees. Sheet metal, wood, stone, and other materials can be fastened to ledges to accomplish the desired angle. Porcupine wire can be used to discourage landing. They are composed of spring-tempered nickel stainless steel prongs with sharp points extending outwards at all angles.