Bird-X 4 the Birds Liquid Repellent Keep pest birds from roosting or landing on any surface. Sticky, transparent liquid remains tacky after application has set.For Pigeons, House Sparrows, Starlings, Gulls, Blackbirds, Cowbirds, Grackles, Woodpeckers, Crows, Ravens, many more. Bird Proof is a non-toxic, viscous, sticky liquid chemical that makes a surface tacky and uncomfortable to birds. Birds avoid BIRD-PROOF like humans avoid wet tar. PROTECT YOUR PROPERTY FOR A FULL YEAR OR LONGER! Although it is non-toxic and non-lethal, its is extremely irritating to roosting birds. USE IN ANY WEATHER, ON ALMOST ANY OUTDOOR SURFACE! Use on water tanks, trees, shrubbery, shipping docks and railroad sidings, yards, parking lots, roof perimeters, air conditioners and more. Protect your property from the annoyance, mess, and constant clean-up that pest birds cause. It's the easiest way to bird-proof open or recessed areas and hide-away corners. APPLY WITH A POWER OR HAND SPRAYER! Use a discharge pressure of 40 psi. One gallon covers up to 120 square feet or an average tree with a 5 diameter trunk. KEEP BIRDS OFF YOUR PROPERTY WITH BIRD PROOF Bird Repellent! Non-toxic, viscous, sticky liquid makes a surface tacky and uncomfortable to birds Use on trees, shrubs, vines, beams, or hard to reach areas. Apply with a power washer, hand washer, or a paintbrush Non-toxic, sticky liquid makes surfaces sticky uncomfortable to birds NON RETURNABLE. Protect landscaping and property from corrosive droppings Reduce health and liability risks associated with pest bird infestation Prevent the spread of diseases, such as West Nile, Salmonella and E. Coli Increase/maintain property aesthetics Decrease nuisance for residents, workers, customers, etc. This item ships from a separate warehouse and may require extra time for delivery.