Labudovo okno This is an IBA in Danger! 

IBA Justification

The site was identified as important in 2019 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
Red-breasted Goose Branta ruficollis VU winter 2013-2019 5-20 individuals C6
Greylag Goose Anser anser LC winter 2013-2019 10,000-30,000 individuals A4, B3a, C3, C4
Greater White-fronted Goose Anser albifrons LC winter 2013-2019 15,000-35,000 individuals A4, B3a, C3, C4
Common Goldeneye Bucephala clangula LC winter 2013-2019 1,000-2,500 individuals B3a, C3
Smew Mergellus albellus LC winter 2013-2019 1,000-2,100 individuals A4, B3a, C2, C6
Common Pochard Aythya ferina VU winter 2013-2019 1,000-3,500 individuals A1, B1b
Ferruginous Duck Aythya nyroca NT passage 2010-2019 200-1,200 individuals B1a, B3a, C2
Red-throated Loon Gavia stellata LC winter 2019 4-8 individuals C6
Arctic Loon Gavia arctica LC winter 2019 4-17 individuals C6
Glossy Ibis Plegadis falcinellus LC breeding 2008-2013 3-20 breeding pairs C6
Squacco Heron Ardeola ralloides LC breeding 2012-2013 50-200 breeding pairs B1b, B3a, C2, C6
Little Egret Egretta garzetta LC breeding 2011-2013 50-250 breeding pairs B3a, C2, C6
Pygmy Cormorant Microcarbo pygmaeus LC passage 2019 400-1,600 individuals A4, B3a, C2
Pygmy Cormorant Microcarbo pygmaeus LC resident 2013 200-650 breeding pairs A4, B2a, B3a, C2, C6
Greater Spotted Eagle Clanga clanga VU winter 2013-2019 2-5 individuals C6
Collared Sand Martin Riparia riparia LC breeding 2019 2,000-4,000 breeding pairs B1b
A4iii Species group - waterbirds n/a winter - 20,000-60,000 individuals B3b, C4

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2019).

IBA Conservation

IBA conservation assessment
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2016 not assessed very high low
Was the whole site assessed? State assessed by Accuracy of information
yes unset medium

Pressure (threats to the trigger species and/or their habitats)
Threat level 1 Threat level 2 Timing Scope Severity Result
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now whole area/population (>90%) very rapid to severe deterioration very high
Energy production and mining renewable energy likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Natural system modifications dams & water management/use - large dams happening now whole area/population (>90%) very rapid to severe deterioration very high
Residential and commercial development tourism and recreation areas happening now some of area/population (10-49%) slow but significant deterioration medium
Transportation and service corridors shipping lanes happening now whole area/population (>90%) moderate to rapid deterioration very high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation Management planning Other conservation action Result
Some of site covered (10-49%) A management plan exists but it is out of date or not comprehensive Some limited conservation initiatives are in place low
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)
Labudovo okno Ramsar Site, Wetland of International Importance 3,733 protected area contained by site 3,733
Karas-Nera Predeli izuzetnih odlika 1,541 protected area overlaps with site 0
Deliblatska pescara Rezervat prirode 34,829 protected area overlaps with site 3,125


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland, Alluvial and very wet forest, Wooded steppe -
Shrubland Scrub -
Grassland Steppes and dry calcareous grassland, Humid grasslands, Mesophile grasslands -
Wetlands (inland) Standing freshwater, Rivers and streams, Water fringe vegetation -
Artificial/Terrestrial Arable land, Perennial crops, orchards and groves, Forestry plantations, Urban parks and gardens, Ruderal land -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
forestry -
hunting -
tourism/recreation -
urban/industrial/transport -
water management -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Labudovo okno. Downloaded from on 22/09/2023.