Korgalzhyn State Nature Reserve

IBA Justification

The site was identified as important in 2006 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
White-headed Duck Oxyura leucocephala EN breeding 2006 870-2,000 individuals A1, A4i
Mute Swan Cygnus olor LC passage 2006 4,550-5,000 individuals A4i
Whooper Swan Cygnus cygnus LC passage 2006 2,500-4,500 individuals A4i
Red-breasted Goose Branta ruficollis VU passage 2006 100 individuals A1
Greylag Goose Anser anser LC passage 2006 5,500 individuals A4i
Greater White-fronted Goose Anser albifrons LC passage 2006 9,500 individuals A4i
Common Goldeneye Bucephala clangula LC passage 2006 15,000 individuals A4i
Smew Mergellus albellus LC passage 2006 18,000 individuals A4i
Goosander Mergus merganser LC passage 2006 200-800 individuals A4i
Common Shelduck Tadorna tadorna LC passage 2006 31,400-35,000 individuals A4i
Ruddy Shelduck Tadorna ferruginea LC passage 2006 36,000-40,000 individuals A4i
Red-crested Pochard Netta rufina LC passage 2006 30,000 individuals A4i
Common Pochard Aythya ferina VU passage 2006 150,000-300,000 individuals A4i
Ferruginous Duck Aythya nyroca NT breeding 2006 300 individuals A1
Northern Shoveler Spatula clypeata LC passage 2006 37,000-50,000 individuals A4i
Gadwall Mareca strepera LC passage 2006 27,100-60,000 individuals A4i
Eurasian Wigeon Mareca penelope LC passage 2006 28,000-50,000 individuals A4i
Mallard Anas platyrhynchos LC passage 2006 20,000 individuals A4i
Northern Pintail Anas acuta LC passage 2006 17,000-30,000 individuals A4i
Red-necked Grebe Podiceps grisegena LC breeding 2006 530 individuals A4i
Great Crested Grebe Podiceps cristatus LC breeding 2006 4,000-10,000 individuals A4i
Black-necked Grebe Podiceps nigricollis LC breeding 2006 750-1,800 individuals A4i
Greater Flamingo Phoenicopterus roseus LC breeding 2006 30,000-50,000 individuals A4i
Common Coot Fulica atra LC passage 2006 100,000-125,000 individuals A4i
Demoiselle Crane Anthropoides virgo LC passage 2006 1,000 individuals A3, A4i
Common Crane Grus grus LC passage 2006 3,500 individuals A4i
Great White Egret Ardea alba LC passage 2006 1,000 individuals A4i
Dalmatian Pelican Pelecanus crispus NT breeding 2006 1,540-3,000 individuals A1, A4i
Great Cormorant Phalacrocorax carbo LC breeding 2006 10,200-15,000 individuals A4i
Pied Avocet Recurvirostra avosetta LC breeding 2006 500 individuals A4i
Sociable Lapwing Vanellus gregarius CR passage 2006 20 individuals A1
Black-tailed Godwit Limosa limosa NT passage 2006 3,100-5,000 individuals A1, A4i
Ruff Calidris pugnax LC passage 2006 10,000-15,000 individuals A4i
Dunlin Calidris alpina LC passage 2006 14,000-15,000 individuals A4i
Little Stint Calidris minuta LC passage 2006 15,000-30,000 individuals A4i
Red-necked Phalarope Phalaropus lobatus LC passage 2006 300,000-400,000 individuals A4i
Black-winged Pratincole Glareola nordmanni NT breeding 2006 50-249 individuals A3
Slender-billed Gull Larus genei LC breeding 2006 3,100 individuals A4i
Black-headed Gull Larus ridibundus LC passage 2006 2,500-3,000 individuals A4i
Pallas's Gull Larus ichthyaetus LC breeding 2006 100 individuals A3
Little Tern Sternula albifrons LC breeding 2006 300 individuals A4i
Common Tern Sterna hirundo LC breeding 2006 800-1,000 individuals A4i
Common Gull-billed Tern Gelochelidon nilotica LC breeding 2006 1,500 individuals A4i
Steppe Eagle Aquila nipalensis EN non-breeding 2006 12-30 individuals A3
Pallid Harrier Circus macrourus NT breeding 2006 50-200 individuals A1
Pallid Harrier Circus macrourus NT breeding 2006 50-200 individuals A1, A3
Lesser Kestrel Falco naumanni LC breeding 2006 30-50 individuals A1
Black Lark Melanocorypha yeltoniensis LC breeding 2006 8,000-10,000 individuals A3
White-winged Lark Alauda leucoptera LC breeding 2006 2,500 individuals A3
A4iii Species group - waterbirds n/a passage 2006 2,000,000 individuals A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2006).

IBA Conservation

IBA conservation assessment
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2012 favourable medium high
Was the whole site assessed? State assessed by Accuracy of information
yes habitat good

State (condition of the trigger species' habitats)
Habitat Habitat detail Reference area (ha) Actual area (ha) Habitat quantity (% remaining) Habitat quality (carrying capacity) Result
Artificial/Terrestrial 0 0 good (> 90%) good (> 90%) favourable
Grassland Steppes & dry calcareous 0 0 good (> 90%) good (> 90%) favourable
Wetlands (inland) 0 0 good (> 90%) good (> 90%) favourable

Pressure (threats to the trigger species and/or their habitats)
Threat level 1 Threat level 2 Timing Scope Severity Result
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now small area/few individuals (<10%) no or imperceptible deterioration low
Climate change and severe weather drought happening now some of area/population (10-49%) slow but significant deterioration medium
Human intrusions and disturbance recreational activities happening now small area/few individuals (<10%) no or imperceptible deterioration low
Natural system modifications dams & water management/use - dams (size unknown) happening now majority/most of area/population (50-90%) no or imperceptible deterioration low
Pollution domestic & urban waste water - type unknown/unrecorded happening now some of area/population (10-49%) no or imperceptible deterioration low
Pollution industrial & military effluents - type unknown/unrecorded likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation Management planning Other conservation action Result
Whole area of site (>90%) covered by appropriate conservation designation A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity high
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)
Tengiz-Korgalzhyn Lake System Ramsar Site, Wetland of International Importance 353,341 protected area overlaps with site 258,963
Saryarka – Steppe and Lakes of Northern Kazakhstan World Heritage Site (natural or mixed) 450,344 protected area overlaps with site 258,963
Kurgal'dzhinskiy State Nature Reserve 243,138 protected area overlaps with site 258,963

Local Conservation Groups

The Local Conservation Groups listed below are working to support conservation at this IBA.

Name Year formed
NGO "Rodnik" 1998
For more information on BirdLife's work with Local Conservation Groups, please click here.


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Grassland Steppes & dry calcareous -
Wetlands (inland) Rivers & streams, Standing brackish & salt water, Standing fresh water -
Artificial/Terrestrial Arable land -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
rangeland/pastureland -
agriculture -
urban/industrial/transport -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Korgalzhyn State Nature Reserve. Downloaded from on 30/09/2023.