Avian Plus is a bird hazing system that uses natural scents to deter pest birds from enclosed and semi-enclosed areas such as airline hangars, warehouses, storage facilities, loading docks, big box stores and more. Avian Plus is a small wall mounted unit that emits a non-toxic, non-allergenic scent into the air that is pleasing to humans, and unbearable to birds. It makes buildings smell good, while keeping pest birds away at the same time. The natural scents make pest birds feel unbalanced, creating an environment they will want to avoid. The system is ideal for keeping pest birds from roosting or nesting in indoor rafter areas and is available in two sizes to serve spaces up to 250,000 cubic feet per unit.