Birds, bird droppings and nesting materials can carry 60 different diseases and ectoparasites that can be passed to humans and animals. If dried bird droppings are found near ventilation systems, they can travel through buildings potentially infecting inhabitants.
Bird droppings and nests are an unattractive feature for homes and businesses. If birds are allowed to nest at a property for an extended period of time, the presence of their nests, possible diseases and ecto-parasites and bird droppings can devalue a property and have the neighbors complaining.
Cost / Time of Cleanup
If you are spending time regularly cleaning bird droppings or nesting materials from your home, backyard, boat or other areas, you are exposing yourself to potentially hazardous materials on a regular basis. Not to mention the time wasted on regular clean-up.
Droppings are highly acidic and can corrode buildings materials and stain fabrics. These will need restoration or complate replacement if the droppings are left long enough.
Droppings and nesting materials regularly clog drains and gutters. This can cause other problems on roofs and other areas by damming water and creating the potential of flooding.
Lost or Damaged Crops
Birds can be quite a nuisance for backyard gardeners. They can swoop in and decimate backyard edibles in a matter of hours or days. After spending the season, planting and tending to your garden, they can literally eat the fruits of your labor.