IBA Criteria

Year of most recent IBA criteria assessment: 2019

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Corncrake Crex crex LC breeding 2017-2019 70-110 breeding pairs C6
Short-toed Snake-eagle Circaetus gallicus LC breeding 2017-2019 4-6 breeding pairs C6
Montagu's Harrier Circus pygargus LC breeding 2017-2019 4-7 breeding pairs B2a, C6
Red-backed Shrike Lanius collurio LC breeding 2017-2019 1,500-2,000 breeding pairs B1b, C6

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2016 high not assessed not assessed
Was the whole site covered? Yes State assessed by unset
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now some of area/population (10-49%) slow but significant deterioration medium
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now some of area/population (10-49%) slow but significant deterioration medium
Energy production and mining renewable energy happening now small area/few individuals (<10%) very rapid to severe deterioration low
Natural system modifications other ecosystem modifications happening now whole area/population (>90%) slow but significant deterioration high
Transportation and service corridors roads and railroads happening now small area/few individuals (<10%) slow but significant deterioration low

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) No management plan exists but the management planning process has begun Some limited conservation initiatives are in place not assessed
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Pestersko polje Rezervat prirode 3,118 protected area overlaps with site 0
Pestersko polje Ramsar Site, Wetland of International Importance 3,455 protected area contained by site 3,455


IUCN Habitat Habitat detail Extent (% of site)
Forest Mixed woodland -
Grassland Steppes and dry calcareous grassland -
Shrubland Scrub -
Artificial/Terrestrial Arable land -
Other -
For further information about the habitat classification please click here.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Pester. Downloaded from on 28/03/2023.