The parents take turns to sit on the eggs, turning them over with their beaks every so often to keep them at an equal temperature. The baby egrets hatch after 21 days or so.
在所有鳥類中又以鷺鷥的粉最發達，因此遇到下雨天，胎毛未換的幼雛就全靠雙親輪番上陣，替他們擋雨遮寒。