Spray banishes birds from boat docks, buildings, bridges
Spray food-grade, biodegradable BirdShield on buildings, statues, bridges, and even nests to keep birds from nesting and roosting. Spray also deters water birds from boat docks and marinas. Liquid formula is made with methyl anthranilate, a component of Concord grapes. The grape smell is unpleasant to birds, forcing them to leave treated areas.