BTW: The Navy base in Newport has tried just about everything for their thousands of Illegal Geese. The latest effort is a "Herding" type dog....maybe a terrier..I'm not sure what kind of dog....that roams around with a dog handler to chase the geese away. NB
http://www.pestproducts.com/goose_buster.htm
For the money I'm sure it works. Totally.