Deter aggressive seagulls & gulls by creating fear that there is a real predator in the area. This full-feathered, life-like, exact size replica appears like a dead gull in a death pose to live birds, driving them from boats, sailboats, buildings, landfills, docks, marinas. Position the Dead Gull Decoy at the infested / roosting area -including boats,rooftop or other flat areas. Two gulls are better than one - place one dead gull decoy face down and the other feet up. The dead gull decoy can also be displayed using the Swivel Bracket Kit. This will signal danger to other birds. Keep the gulls guessing - move the Dead seagull decoy randomly every day or two. Initially, birds approach the decoy but usually leave when they see the unnatural position of the 'corpse'. *No single product stands alone; a combination of Bird deterrents must be used with repeated reinforcement as necessary.