Kazakhstan portion of the river Volga's Delta - Zhambay

IBA Justification

The site was identified as important in 2003 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
Glossy Ibis Plegadis falcinellus LC breeding 2003 250-300 A4i
Black-crowned Night-heron Nycticorax nycticorax LC breeding 2003 1,000-1,500 individuals A4i
Purple Heron Ardea purpurea LC breeding 2003 250-500 individuals A4i
Dalmatian Pelican Pelecanus crispus NT breeding 2003 100-300 individuals A1, A4i
Pygmy Cormorant Microcarbo pygmaeus LC breeding 2003 300-600 individuals A4i
Great Cormorant Phalacrocorax carbo LC breeding 2003 1,000-5,000 individuals A4i
Whiskered Tern Chlidonias hybrida LC breeding 2003 2,000-5,000 individuals A4i
Black Tern Chlidonias niger LC breeding 2003 4,000-6,000 individuals A4i
A4iii Species group - waterbirds n/a passage 2003 20,000-49,999 individuals A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2003).

IBA Conservation

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

State (condition of the trigger species' populations)
Scientific name Common name Reference population Actual population Units % of population remaining Result
Cygnus olor Mute Swan 1673 1110 individuals 67 unfavourable
Bucephala clangula Common Goldeneye 230 163 individuals 71 near favourable
Mergellus albellus Smew 205 415 individuals 100 favourable
Netta rufina Red-crested Pochard 4750 2715 individuals 58 unfavourable
Aythya nyroca Ferruginous Duck 2 22 individuals 100 favourable
Mareca strepera Gadwall 45 3 individuals 7 very unfavourable
Anas platyrhynchos Mallard 30 20 individuals 67 unfavourable
Fulica atra Common Coot 1500 1450 individuals 97 favourable
Botaurus stellaris Eurasian Bittern 1 1 individuals 100 favourable
Nycticorax nycticorax Black-crowned Night-heron 4 64 individuals 100 favourable
Ardea cinerea Grey Heron 4 262 individuals 100 favourable
Ardea purpurea Purple Heron 26 71 individuals 100 favourable
Ardea alba Great White Egret 442 1203 individuals 100 favourable
Egretta garzetta Little Egret 10 8 individuals 80 near favourable
Pelecanus crispus Dalmatian Pelican 258 787 individuals 100 favourable
Pelecanus onocrotalus Great White Pelican 1500 31 individuals 3 very unfavourable
Microcarbo pygmaeus Pygmy Cormorant 17 2000 individuals 100 favourable
Phalacrocorax carbo Great Cormorant 1340 518 individuals 39 very unfavourable
Larus ridibundus Black-headed Gull 891 1330 individuals 100 favourable
Larus ichthyaetus Pallas's Gull 245 587 individuals 100 favourable
Larus cachinnans Caspian Gull 447 593 individuals 100 favourable
Hydroprogne caspia Caspian Tern 1 3 individuals 100 favourable
Circus aeruginosus Western Marsh-harrier 3 6 individuals 100 favourable
Haliaeetus albicilla White-tailed Sea-eagle 57 22 individuals 39 very unfavourable

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation Management planning Other conservation action Result
Unknown Unknown Unknown negligible
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)
Novinskiy Zakaznik 45,000 protected area overlaps with site 45,000
Northen Part of Caspian Sea State Reservation 7,000,000 protected area overlaps with site 203,480


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Grassland Mesophile grassland & tall grass steppe -
Wetlands (inland) Rivers & streams, Standing brackish & salt water, Standing fresh water, Water-fringe vegetation -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
fisheries/aquaculture -
nature conservation and research -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Kazakhstan portion of the river Volga's Delta - Zhambay. Downloaded from on 03/12/2023.