These are protected birds, but permits for management can be obtained from the Illinois Department of Natural Resources. With permits, their eggs can be replaced with artificial eggs or they can be spun to kill the embryo and returned to the nest. If the eggs are just removed, the geese will quickly lay another batch. However, they will continue to brood artificial or dead eggs until it is too late to nest again. These activities at least keep the flock from growing in size. Canada geese are subject to a hunting season, but most flocks associated with fine turfgrass areas are located in urban areas where hunting is restricted.
Trained dogs, usually border collies and other herding dogs, can be used to chase and harass the geese several times per week. Contracting with a pest control firm that provides this service avoids having to obtain the proper dogs, maintain, and train them. The contracted firm will also possess the necessary permits for this activity from the Illinois Department of Natural Resources. There is a repellent with a grape pulp base that is available. However, in some situations its appearance and odor are objectionable to people in the area. It is sporadic in its effectiveness.
An important Canada goose behavior is to run into a body of water when danger threatens. They prefer to run rather than fly. Erecting a fence that is at least a foot high within a few feet of the edge of a preferred body of water will usually cause the geese to go elsewhere. Even a fence this short is not practical in many situations, but has been used effectively to reduce or eliminate geese in housing and business developments.
