The Kolindsund Wetlands is a part of a sound (Djursland), located in the middle of Jutland in Denmark and embedded in an agricultural area. Djursland is situated along one of the 3 important migratory routes along the coasts of Denmark. It is filled with moors, meadows, small lakes and ponds. Kolindsund is a sub-sea level area. The lowest points are approximately four meters below DNN (Danish Normal Null). In summer 1874 it was decided to drain the lake completely for agricultural purposes. A main drainage canal was built and the total draining of the lake began.
As of now the site has no protection status. The lakes is completely drained and kept dry at extensive pumping costs. The area is used for agriculture. However more and more of the old bottom of the lake are given up because of settings in the organic matter of the lake bottom. A large part of the lake, approximately a fourth, has more or less been given up, due to the farmer`s inability to keep the land dry enough for farming. The objective of the organisation Kolindsunds Venner (Friends of Kolindsund) is the restoration of reed swamps and the reestablishment of the lake. Approximately 100 hectares has evolved into reed swamps since 1967 and this development continues with an increasing speed. Once Kolindsund is re-established it will become rapidly one of the most important migratory birds nesting sites in Denmark.
- Lowering of the ground water level in the surrounding areas
- Concentration of Nitrate
- Untreated waste water
- Rising of the salty ground water beneath the lake
Kolindsund Wetlands are the living space for a variety of birds and fish. 178 different bird species live there, like the Sky Lark, European Golden Plover, Tundra Swan, Black-headed Gull, Red-necked Grebe and White-tailed Eagle.
In the following pdf data you find the detailed list of the bird species living in the Kolindsund Wetlands.