Hermaness, Saxa Vord and Valla Field

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
Northern Gannet Morus bassanus LC breeding 1999 16,386 breeding pairs A4ii, B1ii, B2, C3
Great Skua Catharacta skua LC breeding 2001 1,074 breeding pairs A4ii, B1ii, B2, C3
Atlantic Puffin Fratercula arctica VU breeding 2002 27,949 breeding pairs B1ii, B2, C3
A4iii Species group - seabirds n/a breeding 1999-2002 66,832 breeding pairs A4iii, C4

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 very high 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
Climate change and severe weather habitat shifting and alteration happening now whole area/population (>90%) very rapid to severe deterioration very high

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Morus bassanus Northern Gannet 12000 16386 breeding pairs 100 favourable
Catharacta skua Great Skua 1220 1074 breeding pairs 89 near favourable
Fratercula arctica Atlantic Puffin 19100 27949 breeding pairs 100 favourable
Cepphus grylle Black Guillemot 380 243 individuals 64 unfavourable
Species group - seabirds A4iii 70610 66832 breeding pairs 95 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) Unknown Unknown low
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)
Valla Field Site of Special Scientific Interest (GB) 629 protected area contained by site 624
Hermaness, Saxa Vord and Valla Field Special Protection Area (Birds Directive) 144 protected area contained by site 1,663
Hermaness Site of Special Scientific Interest (GB) 978 protected area contained by site 980
Hermaness National Nature Reserve 964 protected area contained by site 964


IUCN Habitat Habitat detail Extent (% of site)
Shrubland Heathland -
Grassland Humid grasslands -
Wetlands (inland) Blanket bogs -
Coastline Sea cliffs and rocky shores -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Hermaness, Saxa Vord and Valla Field. Downloaded from on 19/01/2020.