I live in near downtown Phoenix with a man-made lake. The management company has purchased the fake coyotes and have placed them around the lake...do they work? No. Because if you don't move them regularly, the geese don't see them as a hazzard. If you have a chance to do this...run dogs through there on a regular basis to chase the geese away. If they are constantly being harassed, they won't feel welcomed to stay. The easier you make it for them, the more comfortable they become.
