In lack of trees, they tend to nest on tops of buildings usually on HVAC units or HVAC vents.
They do so because HVAC units are dry and often warm and also safe for nesting.
Birds dander and feces build up in vents tend to clog filters, evaporator coils and drain pans.
they are highly flammable, thus present huge fire hazard.
Feathers often get caught in blades which can stop A C compressor from starting, making your HVAC system inefficient.
All of these complications affect HVAC efficiency and also reflect on your energy bill..
It's very important to remove bird droppings and feathers from your HVAC system because they harbor human pathogens such as Histoplasma and Salmonella.
The illnesses related to birds cause respiratory, digestive, and skin problems.
Older people, children, and ones with the immune system are especially affected..
What you can do to prevent birds from building nests around your air conditioning unit is -install wire cage around A C unit install bird cage over exhaust vent -install netting over duct work -call your local air duct cleaning company and have your ducts cleaned...
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