UK193
Lochs of Harray and Stenness


IBA Criteria

Year of most recent IBA criteria assessment: 2007

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Greylag Goose Anser anser LC winter 2001-2006 2,296 individuals B1i, C3
Greater Scaup Aythya marila LC passage 2001-2006 173 individuals B2
Greater Scaup Aythya marila LC winter 2001-2006 451 individuals B2

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)
2007 medium very unfavourable low
Was the whole site covered? Yes State assessed by Population
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Natural system modifications dams & water management/use - small dams happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution agricultural & forestry effluents - nutrient loads 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
Cygnus cygnus Whooper Swan 215 12 individuals 6 very unfavourable
Anser anser Greylag Goose 2050 2296 individuals 100 favourable
Aythya marila Greater Scaup 315 451 individuals 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Whole area of site (>90%) covered by appropriate conservation designation Unknown Not assessed low
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Lochs of Harray and Stenness Site of Special Scientific Interest (UK) 1,788 protected area overlaps with site 1,779
Loch Of Stenness Site of Community Importance (Habitats Directive) 793 protected area contained by site 792
Hoy and West Mainland National Scenic Area 24,433 protected area overlaps with site 0
Brodgar Nature Reserve 36 protected area overlaps with site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater, Standing brackish and salt water, Water fringe vegetation -
For further information about the habitat classification please click here.

Land use

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


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Lochs of Harray and Stenness. Downloaded from http://www.birdlife.org on 10/08/2022.