An egret breeds in Europe, Russia, Mongolia, and China. This bird moves to Africa, India, and Korea and winters from November to February. In Korea, it passes winter around a seaside; when spring comes, it moves again to the north to breed. The egret is known as a lucky omen not only in Korea but also everywhere in the world. The Sanctuary of Tundra Swans on Jindo Island is located southwest of the Korean peninsula. This region is the only place where the egret can winter in the southern sea and is fit for a moving egret flock. It is protected from environmental pollution since it is away from a large city. Recently, however, bird food has diminished due to land reclamation so egrets used to spread and winter around the nearby seaside. The Sanctuary of Tundra Swans on Jindo Island is designated and protected as a Natural Monument because it is the only area where the egret can pass winter southwest of Korea.