Keep bird pests off their normal roosting areas with an application of BIRD-PROOF Bird Repellent a non-toxic sticky chemical that makes a surface tacky and uncomfortable to birds. Birds avoid BIRD-PROOF Bird Repellent like humans avoid wet tar. PROTECT YOUR PROPERTY FOR A FULL YEAR OR LONGER! It s non-toxic and harmless to metal structures sealed masonry and ornamental metals. APPLY WITH A STANDARD 10″ CAULKING GUN! Ledges windowsills gutters cornices ornamental copings and protruding beams – any surface where bird pests roost or perch. USE IN ANY WEATHER INDOORS OR OUTDOORS LITERALLY ANYWHERE Water tanks trees shrubbery shipping docks and railroad sidings yards parking lots roof perimeters air conditioners and more.