The next way to get rid of the Canadian geese is Ultrasonic Waves. These can get rid of many animals including geese. Some also have motion detectors. These units are small and look just like any outdoor feature on a building. They can be run with a cord or batteries. If you have a business this may be the most discreet way to repel Canadian geese without using chemicals.
This bundle would be best for businesses that need a lot of coverage. It is expensive but if there is a lot of area the geese destroy, it may be worth the investment. But this would not be necessary for a residential home unless you have a large lawn.