Some individuals escaped from a farm park on freedom, are the beginning of the European population berniklom Canadian. As mentioned in the previous section, and then used to these birds do not usually Płoszaj in the presence of humans. Also zaklimatyzowały quickly to new conditions. It took a lot of time, before the population reached a high abundance of its species. Within one century zdążyły spread in different directions in Europe, it can be found in many urban parks, as well as outside the cities. The consumption of food are not too fastidious. Their diet are the ingredients such as grass and aquatic plants. The course of their life is in many colonies, as well as most species of geese, courageously defend their breeding periods.