UK265
Ornkey Mainland Moors


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
Red-throated Loon Gavia stellata LC breeding 2006 21 breeding pairs C6
Short-eared Owl Asio flammeus LC breeding 2005 22 breeding pairs B2, C6
Hen Harrier Circus cyaneus LC breeding 2007 47-58 breeding pairs B2, C6
Merlin Falco columbarius LC breeding 2006 6 breeding pairs 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)
2007 medium favourable medium
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
Energy production and mining renewable energy likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Gavia stellata Red-throated Loon 16 21 breeding pairs 100 favourable
Circus cyaneus 23 47 breeding pairs 100 favourable
Falco columbarius Merlin 10 6 breeding pairs 60 not assessed

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Whole area of site (>90%) covered by appropriate conservation designation A management plan exists but it is out of date or not comprehensive Some limited conservation initiatives are in place medium
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
West Mainland Moorlands Site of Special Scientific Interest (UK) 3,311 protected area overlaps with site 2,523
Orphir and Stenness Hills Site of Special Scientific Interest (UK) 889 protected area overlaps with site 890
Orkney Mainland Moors Special Protection Area (Birds Directive) 5,342 protected area contains site 4,424
Keelylang Hill and Swartaback Burn Site of Special Scientific Interest (UK) 923 protected area overlaps with site 926
Hoy and West Mainland National Scenic Area 24,433 protected area overlaps with site 0
Hobbister RSPB Reserve 763 protected area overlaps with site 502
Hobbister Nature Reserve 763 protected area overlaps with site 0
Glims Moss and Durka Dale Site of Special Scientific Interest (UK) 219 protected area overlaps with site 0
Cottascarth & Rendall Moss Nature Reserve 324 protected area overlaps with site 0
Birsay Moors RSPB Reserve 2,255 protected area overlaps with site 1,252
Birsay Moors Nature Reserve 2,262 protected area overlaps with site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Shrubland Scrub, Heathland -
Grassland Humid grasslands -
Wetlands (inland) Standing freshwater, Rivers and streams, Blanket bogs -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
not utilised -
other -
nature conservation and research -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Ornkey Mainland Moors. Downloaded from http://www.birdlife.org on 24/09/2020.