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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') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
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

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2005) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2005. The most recent assessment (2015) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Mute Swan Cygnus olor	400	400	individuals	100	favourable
Greylag Goose Anser anser	3,000	350	individuals	12	very unfavourable
Greater White-fronted Goose Anser albifrons	50,000	15,000	individuals	30	very unfavourable
Common Pochard Aythya ferina	2,500	1,304	individuals	53	unfavourable
Tufted Duck Aythya fuligula	375	450	individuals	100	favourable
Mallard Anas platyrhynchos	530	4,500	individuals	100	favourable
Citrine Wagtail Motacilla citreola	2	2	individuals	100	favourable
A4iii Species group - waterbirds	83,300	22,006	individuals	27	very unfavourable

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Not assessed	Not assessed	Not assessed	not assessed

Habitat1	Habitat detail	% of IBA
Wetlands (inland)	Rivers & streams, Standing brackish & salt water, Standing fresh water, Water-fringe vegetation	70
Grassland	Humid, Steppes & dry calcareous	25
Artificial/Terrestrial	Arable land	5
Shrubland	Low bushes	minor (<10)

1. IUCN Habitat classification.

Land use	% of IBA
hunting	40
fisheries/aquaculture	30
rangeland/pastureland	20
agriculture	5

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Uyalyshalkar Lake System (Kazakhstan). Downloaded from https://datazone.birdlife.org/site/factsheet/uyalyshalkar-lake-system-iba-kazakhstan on 22/11/2024.