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Introduction to the Network Sites

Ogii Nuur

Arkhangai Province, Mongolia

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Ogii Nuur

Ogii Nuur lake is located in the valley of the Orkhon River, to the north of the main Khangai ridge in the Arctic Ocean Drainage Basin, 165km north of Arvayheer (47°46'N, 102°46'E). Mesotrophic, freshwater lake of 2,510 ha with an extensive alluvial area of grassland, river, channels, pools and marshes at the western end. The maximum depth of the lake is 16m, but about 40% of the lake is less than 3m deep, and 50% supports macrophytic grown. The surface water temperature in summer reaches 18°C.

The lake is a very important breeding and staging area for a variety of waterfowl, particularly for Anatidae. Birds recorded during a brief survey in June and July 1977 included two breeding pairs of Cygnus cygnus along with 25 non-breeders, 1,000 Anser cygnoides (including several breeding pairs) and:

20 A. anser
54 Tadorna ferruginea
60 Anas penelope
50 A. crecca
20 A. querquedula
60 Aythya ferina

40 A. indicus (breeding)
12 T. tadorna
45 A. strepera
60 A. platyrhynchos (breeding)
100 A. clypeata
130 Bucephala clangula

and small number of Anas falcata, A. acuta, Netta rufina, A. fuligula and Mergus albellus (Kitson 1978).

Management of the Site is provided by:

The Administration of Ogii Nuur Sum of Arkhangai Province, Mongolia.

Activities in the Site:

Further information of the Site can be found on the internet at:

Summarised from Application form to the Network compiled by Dr. Ts. Adyasuren, Development and Environment, NGO, and additional information.

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The "Action Plan for the Conservation of Migratory Anatidae in the East Asian Flyway" is a component of the "Asia-Pacific Migratory Waterbird Conservation Strategy", and the "Anatidae Site Network in the East Asian Flyway" is a programme of international co-operation to enhance the conservation of the wetlands of international importance for Anatidae (ducks, geese and swans) in the flyway under the "Action Plan". The "Anatidae Working Group" of Asia-Pacific Migratory Waterbird Conservation Committee oversees the implementation of these programmes with technical support from Anatidae Flyway Officer.

For further information, please contact the Anatidae Flyway Officer. Posted 14 May 1999, updated 4 February 2003.