Persfjorden - Hamningberg

IBA Criteria

Year of most recent IBA criteria assessment: 2014

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Long-tailed Duck Clangula hyemalis VU passage 2004-2014 300-1,800 individuals A1
Red-breasted Merganser Mergus serrator LC non-breeding 2004-2013 1,000-2,000 individuals B1i
Arctic Herring Gull Larus smithsonianus LC passage 2004-2013 15,000 individuals B1i

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 unfavourable not assessed
Was the whole site covered? Yes State assessed by Population
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 majority/most of area/population (50-90%) no or imperceptible deterioration low
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) slow but significant deterioration medium
Invasive and other problematic species and genes invasive non-native/alien species/diseases - unspecified species happening now majority/most of area/population (50-90%) slow but significant deterioration high
Pollution garbage & solid waste happening now some of area/population (10-49%) slow but significant deterioration medium

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Clangula hyemalis Long-tailed Duck 1800 1200 individuals 67 unfavourable
Mergus merganser Goosander 2000 1000 individuals 50 unfavourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Not assessed Not assessed Not assessed 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)
Ytre Syltevika Naturreservat 846 protected area is adjacent to site 0
Sandfjordneset Naturreservat 49 protected area contained by site 0
Persfjorden-Syltefjorden Landskapsvernområde 24,753 protected area overlaps with site 0
Barvikmyran og Blodskytodden Naturreservat 2,649 protected area is adjacent to site 0


IUCN Habitat Habitat detail Extent (% of site)
Marine Coastal/Supratidal -
Marine Intertidal -
Marine Neritic -
Rocky areas (eg. inland cliffs, mountain peaks) -
Grassland Dry siliceous grassland -
Wetlands (inland) Sand dunes and beaches -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
fisheries/aquaculture -
tourism/recreation -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Persfjorden - Hamningberg. Downloaded from on 17/05/2022.