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The site was identified as important in 2005 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	passage	2005	54 individuals	A1
Whooper Swan Cygnus cygnus	LC	passage	2005	360-3,180 individuals	A4i
Greylag Goose Anser anser	LC	passage	2005	3,000-3,500 individuals	A4i
Greater White-fronted Goose Anser albifrons	LC	passage	2005	12,000-50,000 individuals	A4i
Smew Mergellus albellus	LC	passage	2005	1,250 individuals	A4i
Ruddy Shelduck Tadorna ferruginea	LC	passage	2004	1,200 individuals	A4i
Mallard Anas platyrhynchos	LC	passage	2005	9,500-10,860 individuals	A4i
Great Crested Grebe Podiceps cristatus	LC	passage	2005	2,670-2,740 individuals	A4i
Demoiselle Crane Anthropoides virgo	LC	breeding	2005	< 50 individuals	A3
Demoiselle Crane Anthropoides virgo	LC	passage	2005	2,100-8,400 individuals	A4i
Great White Egret Ardea alba	LC	passage	2004	37-588 individuals	A4i
Dalmatian Pelican Pelecanus crispus	NT	passage	2005	146-838 individuals	A1, A4i
Pied Avocet Recurvirostra avosetta	LC	passage	2005	1,340-1,350 individuals	A4i
Sociable Lapwing Vanellus gregarius	CR	passage	2007	30-227 individuals	A1, A4i
Black-tailed Godwit Limosa limosa	NT	passage	2005	2,545-5,360 individuals	A1, A4i
Ruff Calidris pugnax	LC	passage	2005	22,530 individuals	A4i
Red-necked Phalarope Phalaropus lobatus	LC	passage	2005	24,600-32,500 individuals	A4i
Black-winged Pratincole Glareola nordmanni	NT	breeding	2006-2007	100-144 breeding pairs	A1, A3
Black Lark Melanocorypha yeltoniensis	LC	breeding	2005	260 breeding pairs	A3
A4iii Species group - waterbirds	n/a	passage	2005	21,200-83,300 individuals	A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2005).

State (condition of the trigger species' populations)
Scientific name	Common name	Reference population	Actual population	Units	% of population remaining	Result
Cygnus olor	Mute Swan	400	400	individuals	100	favourable
Anser anser	Greylag Goose	3000	350	individuals	12	very unfavourable
Anser albifrons	Greater White-fronted Goose	50000	15000	individuals	30	very unfavourable
Aythya ferina	Common Pochard	2500	1304	individuals	53	unfavourable
Aythya fuligula	Tufted Duck	375	450	individuals	100	favourable
Anas platyrhynchos	Mallard	530	4500	individuals	100	favourable
Motacilla citreola	Citrine Wagtail	2	2	individuals	100	favourable
Species group - waterbirds	A4iii	83300	22006	individuals	27	very unfavourable

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation	Management planning	Other conservation action	Result
Not assessed	Not assessed	Not assessed	not assessed

For more information about IBA conservation status, please click here

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Artificial/Terrestrial	Arable land	-
Shrubland	Low bushes	-
Grassland	Humid, Steppes & dry calcareous	-
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	Extent (% of site)
agriculture	-
rangeland/pastureland	-
fisheries/aquaculture	-
hunting	-

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Uyalyshalkar Lake System. Downloaded from http://datazone.birdlife.org/site/factsheet/uyalyshalkar-lake-system-iba-kazakhstan on 22/09/2023.