Keeps Birds from Roofs, Interior or Exterior Walls, Surfaces or Other Structures. (Also perfect for spraying on nests!) Food-grade Bird Repellent Invisible solution -- You can't see it or hear it, so it won't be a bother to neighbors, customers or employees. Birds leave treated areas for better conditions -- Long-term - they can't habituate. Product is EPA reduced risk, developed with USDA assistance and FDA Generally Recognized As Safe. Made from a bitter tasting, smelly component of concord grapes (active ingredient methyl anthranilate). Coverage: Depends on structure - possibly one gallon per medium rooftop. More coverage on metal beams and other non-porous surfaces. Lasts 3-10 days or more, depending on porosity and on sunlight. After a few treatments, birds will typically not return. Price: $95 per gallon BirdShield™ 1 Gallon birdsheildOur Price: $105.00Sale price: Most Orders Shipped Out Same Day! Premier Ponds LLC pondinfo@premierponds.com U.S.A. Copyright © 1999 - 2007 Premier Ponds LLC, North Salem, New York. All rights reserved. Thermo-Pond Heater 3.0, Aquascape Designs Pond Kits, ScareCrow Sprinkler, Nursery Pro Micro Pond Kits, AquaClearer, Microbe-Lift, Great Blue Heron Decoy, Pond Liners, Thermo Pond Heater & Deicer, Premium Koi Food, Select Koi, Butterfly Koi, Pond Aeration Pumps, Flexible PVC Piping, BioFalls, Skimmer, Aquascape Pumps, Cat Stop!, Animal Control Products, Pond Netting.