There is a major problem of pigeons in many areas now one day. They have easy access from the open plumbing ducts and find a good nesting area in the pipes and parapets inside the conduit. They make nests and lay eggs there. There is a big problem of bird droppings inside the ducts that can not be easily cleaned and emits a very dirty smell. Many pigeons die in the ducts causing a large presence of worms and other insects in the duct area. Pigeons nest on top of ACs and release a type of fungus that can cause PULMONARY DISEASES. We have developed a special network to get rid of this threat caused by pigeons without hurting or killing them. This net is made of 100% NYLON CO-POLYMER and is transparent in color with 1 "square mesh and 1.1 / 2" square mesh.