Son-Kul Lake

IBA Justification

The site was identified as important in 2010 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Ruddy Shelduck Tadorna ferruginea LC breeding - 300-1,000 breeding pairs A4i
Great Crested Grebe Podiceps cristatus LC breeding - 100-1,000 breeding pairs A4i
Common Coot Fulica atra LC breeding - 500-10,000 breeding pairs A4i
Saker Falcon Falco cherrug EN resident - 2-4 breeding pairs A1
A4iii Species group - waterbirds n/a breeding - 1,026-12,930 breeding pairs A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2010).

IBA Conservation

IBA conservation assessment
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2013 not assessed high low
Was the whole site assessed? State assessed by Accuracy of information
yes unset good

Pressure (threats to the trigger species and/or their habitats)
Threat level 1 Threat level 2 Timing Scope Severity Result
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now majority/most of area/population (50-90%) slow but significant deterioration high
Biological resource use fishing & harvesting aquatic resources - unintentional effects: large scale happening now some of area/population (10-49%) slow but significant deterioration medium
Human intrusions and disturbance work and other activities happening now majority/most of area/population (50-90%) slow but significant deterioration high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation Management planning Other conservation action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) A management plan exists but it is out of date or not comprehensive Very little or no conservation action taking place low
For more information about IBA conservation status, please click here

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Sonkul Wildlife Refuge 30,000 protected area overlaps with site 30,000
Son-Kol Lake Ramsar Site, Wetland of International Importance 36,869 protected area overlaps with site 0
Karatal-Zhapyrk NR State Nature Reserve 21,259 unknown 0


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Grassland Alpine, subalpine & boreal -
Wetlands (inland) Standing fresh water -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
agriculture -
nature conservation and research -
tourism/recreation -

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Son-Kul Lake. Downloaded from on 21/02/2024.