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Location Mongolia, Zavkhan
Central coordinates 95o 7.00' East  48o 27.00' North
IBA criteria A1, A4i
Area 14,800 ha
Altitude 1,491 - 1,781m
Year of IBA assessment 2009

Site description The site comprises a freshwater lake in the southwest of Santmargats soum. Only the Mukhar Khunguin River enters the lake, and there is no outflow. The Mukhar Khunguin River delta is a rich wetland. The lake is frozen from November to May. The lake is surrounded by mountains, and the Bor Khar sand dunes lie to the south. The primary land use is livestock grazing. The lake has good recreational potential.

Key Biodiversity Three Globally Threatened species are found at the site: Dalmatian Pelican Pelecanus crispus (VU); Pallas's Fisheagle Haliaeetus leucoryphus (VU); and Saker Falcon Falco cherrug (VU). The site regularly supports at least 1% of the flyway populations of Great Crested Grebe Podiceps cristatus and Dalmatian Pelican.

Non-bird biodiversity: No information is available on other fauna and flora.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Great Crested Grebe Podiceps cristatus 2004  present  A4i  Least Concern 
Dalmatian Pelican Pelecanus crispus breeding  2004  present  A1, A4i  Vulnerable 
Saker Falcon Falco cherrug 2009  present  A1  Endangered 
Pallas's Fish-eagle Haliaeetus leucoryphus breeding  2004  present  A1  Vulnerable 


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland)   -
Desert   -

Protection status Unprotected

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Santmargatsyn Bayan Lake. Downloaded from on 24/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife