Eurasian bittern
Omø is located south of Agersø, 6 km off the coast of Zealand. The island has an area of 4.5 km². South of the village of Kirkehavn is a lake, Omø Lake (Danish: "Omø Sø"), and further west is a bog simply known as the Bog (Danish: "Mosen"), with the lake of Mosebækken. The greylag goose and Eurasian bittern breed in the area around Omø Lake.