It prevents them from:
Nesting
Birds love cosy, enclosed spaces like the inside of your ventilation ducts. A bird screen puts a stop to their nesting plans, saving you the headache (and potential health risks) of removing unwanted feathery families.
Clogging
Leaves, twigs, and other debris carried in by birds can clog your ventilation system, reducing airflow and potentially damaging the fan. A bird screen acts as a filter, keeping your ducts clear and your fan functioning efficiently.
Noise
Trapped birds fluttering in your vents can create quite a racket, disrupting your peace and quiet. A bird screen ensures your ventilation system remains a haven for fresh air, not unwanted feathered guests.
