Scaregull Seagull and Bird Scarer For Boats Improved Design For 2018 Includes Retaining System Scaregull will keep your boat clear of gulls and birds even in busy marinas. Decks and top sides are kept bird free so less cleaning time and more time on the water. Scaregull is a unique, environmentally friendly and completely universal Bird Scarer for any watercraft. Scaregull is humane, It does not harm birds it simply stops them landing on your boat. Scaregull is class leading in design and performance, robust and long lasting. Scaregull is a must have boating accessory.