• Summary
• Text account
• Data table and detailed info
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• Reference and further resources

The site was identified as internationally important for bird conservation in 2006 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 List	Season (year/s of estimate)	Size	IBA criteria
Red-breasted Goose Branta ruficollis	VU	passage (2000)	250 birds	A1
Greater White-fronted Goose Anser albifrons	LC	passage (2000)	10,000–25,000 birds	A4i
Pied Avocet Recurvirostra avosetta	LC	breeding (2000)	125–150 pairs	A4i
Little Gull Hydrocoloeus minutus	LC	passage (2000)	1,500–2,000 birds	A4i
Pallid Harrier Circus macrourus	NT	breeding (2000)	10–15 pairs	A1
A4iii Species group - waterbirds	n/a	passage (2000)	12,650–29,350 birds	A4iii

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Ozera Tobolo-Ishimskoy lesostepi	International Park (-)	100

Habitat	% of IBA	Habitat detail
Wetlands (inland)	80	Standing brackish & salt water; Temporary water bodies
Grassland	15	Steppes & dry calcareous
Artificial/Terrestrial	5	Arable land

Land use	% of IBA
hunting	100
rangeland/pastureland	25
agriculture	15

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Siverga lake (Russia (Central Asian)). Downloaded from https://datazone.birdlife.org/site/factsheet/siverga-lake-iba-russia-(central-asian) on 24/12/2024.