Canada geese are protected by the Migratory Bird Treaty Act, thus it is illegal to harm or kill a Canada goose outside of regular hunting season and without proper license. Hunting alone cannot solve the problem of resident Canada geese. Scare devices, such as flags, balloons, mylar tape, replicas of swans, noisemakers and pop guns quickly lose their effectiveness as the geese become habituated. Chemical repellants are costly, need frequent re-applications and have limited success. Lethal control methods require special, and difficult-to-acquire permits.
The most simple, effective and humane solution is the hazing of Canada geese by highly trained Border Collies. Border Collies replicate the behaviors and movements of a fox or coyote, natural predators of Canada geese. The geese do not ever become habituated to the Border Collies. While the Border Collies do not physically harm the geese, they repetitively harass them enough that over time the geese learn to avoid that location and move on to a different site. The goal is for effective movement of the goose population, not eradication.