RU2004
Dvuob'ye


IBA Justification

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
Whooper Swan Cygnus cygnus LC breeding (2001) 100–150 pairs A3
Whooper Swan Cygnus cygnus LC passage (2001) 800–2,000 birds A4i
Tundra Swan Cygnus columbianus LC passage (2001) 300–650 birds A4i
Red-breasted Goose Branta ruficollis VU passage (1999) 3,000–7,000 birds A1, A4i
Bean Goose Anser fabalis LC passage (1989–2001) 5,000–10,000 birds A4i
Greater White-fronted Goose Anser albifrons LC passage (1989–2001) 10,000–30,000 birds A4i
Lesser White-fronted Goose Anser erythropus VU passage (2000) 400–600 birds A1, A4i
Common Scoter Melanitta nigra LC passage (2001) 70,000–150,000 birds A4i
Common Goldeneye Bucephala clangula LC breeding (2000) 400–500 pairs A3, A4i
Common Goldeneye Bucephala clangula LC passage (2000) 2,000–3,000 birds A4i
Smew Mergellus albellus LC breeding (2001) 350–700 pairs A3, A4i
Smew Mergellus albellus LC non-breeding (1989–2001) 2,600–25,000 birds A4i
Red-breasted Merganser Mergus serrator LC breeding (1966–2001) 130–290 pairs A4i
Common Pochard Aythya ferina VU breeding (2001) 2,000–3,500 pairs A4i
Common Pochard Aythya ferina VU passage (2001) 10,000–20,000 birds A4i
Tufted Duck Aythya fuligula LC breeding (2001) 3,500–5,500 pairs A4i
Tufted Duck Aythya fuligula LC passage (2001) 45,000–70,000 birds A4i
Greater Scaup Aythya marila LC passage (2001) 35,000–60,000 birds A4i
Garganey Spatula querquedula LC breeding (2001) 2,000–4,000 pairs A4i
Garganey Spatula querquedula LC passage (2001) 6,000–12,000 birds A4i
Northern Shoveler Spatula clypeata LC breeding (2001) 2,500–3,500 pairs A4i
Northern Shoveler Spatula clypeata LC passage (2001) 10,000–15,000 birds A4i
Eurasian Wigeon Mareca penelope LC breeding (2001) 8,500–13,000 pairs A3, A4i
Eurasian Wigeon Mareca penelope LC passage (2001) 40,000–65,000 birds A4i
Northern Pintail Anas acuta LC breeding (2001) 13,000–20,000 pairs A4i
Northern Pintail Anas acuta LC passage (2001) 100,000–150,000 birds A4i
Common Teal Anas crecca LC breeding (2001) 3,000–4,500 pairs A4i
Common Teal Anas crecca LC passage (2001) 9,000–15,000 birds A4i
Horned Grebe Podiceps auritus VU breeding (2001) 1,000–3,000 pairs A3, A4i
Eurasian Curlew Numenius arquata NT breeding (2000) 350–600 pairs A4i
Ruff Calidris pugnax LC passage (2001) 10,000–15,000 birds A4i
Temminck's Stint Calidris temminckii LC passage (2001) 120,000–200,000 birds A4i
Dunlin Calidris alpina NT passage (2001) 20,000–40,000 birds A4i
Little Stint Calidris minuta LC passage (2001) 40,000–60,000 birds A4i
Pin-tailed Snipe Gallinago stenura LC breeding (1989–2001) 300–600 pairs A4i
Common Snipe Gallinago gallinago LC breeding (2001) 9,000–15,000 pairs A4i
Red-necked Phalarope Phalaropus lobatus LC breeding (2001) 7,000–8,000 pairs A4i
Terek Sandpiper Xenus cinereus LC breeding (2001) 1,000–2,000 pairs A4i
Common Greenshank Tringa nebularia LC breeding (2001) 350–500 pairs A3
Little Gull Hydrocoloeus minutus LC breeding (2001) 65,000–80,000 pairs A4i
Black-headed Gull Larus ridibundus LC breeding (1989–2001) 15,000–20,000 birds A4i
Common Tern Sterna hirundo LC breeding (1989–2001) 15,000–20,000 birds A4i
Three-toed Woodpecker Picoides tridactylus LC breeding (1989–2001) present A3
Siberian Tit Poecile cinctus LC breeding (1989–2001) present A3
Arctic Warbler Phylloscopus borealis LC breeding (1989–2001) present A3
Brambling Fringilla montifringilla LC breeding (1989–2001) present A3
Pine Grosbeak Pinicola enucleator LC breeding (1989–2001) present A3
Yellow-breasted Bunting Emberiza aureola CR breeding (1963–2000) 700–1,000 pairs A1
Rustic Bunting Emberiza rustica VU breeding (1989–2001) present A3
A4iii Species group - waterbirds n/a breeding (1989–2001) 1,500,000–4,000,000 birds A4iii

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
1985 Kunovatsky Zakaznik (Federal) (IV) 11

Habitats

Habitat % of IBA Habitat detail
Grassland 60 Humid
Wetlands (inland) 21 Temporary water bodies; Standing fresh water; Rivers & streams
Shrubland 13
Forest 6 Mixed
Artificial/Terrestrial minor (<10)

Land use

Land use % of IBA
fisheries/aquaculture 100
hunting 92
not utilised 20
nature conservation and research 8
forestry 6
other 4
rangeland/pastureland 2
urban/industrial/transport minor (<10)


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Dvuob'ye (Russia (Central Asian)). Downloaded from https://datazone.birdlife.org/site/factsheet/dvuobye-iba-russia-(central-asian) on 22/12/2024.