UK097
Ynys Feurig, Cemlyn Bay and the Skerries


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
Roseate Tern Sterna dougallii LC breeding 2000 2 breeding pairs C6
Roseate Tern Sterna dougallii LC breeding 2006 2 breeding pairs C6
Common Tern Sterna hirundo LC breeding 2000 184 breeding pairs C6
Common Tern Sterna hirundo LC breeding 2006 429 breeding pairs C6
Arctic Tern Sterna paradisaea LC breeding 2000 1,705 breeding pairs C2, C6
Arctic Tern Sterna paradisaea LC breeding 2006 2,726 breeding pairs C2, C6
Sandwich Tern Thalasseus sandvicensis LC breeding 2000 450 breeding pairs B2, C2, C6
Sandwich Tern Thalasseus sandvicensis LC breeding 2006 1,273 breeding pairs A4i, B1i, B2, C2, 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 high 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
Biological resource use fishing & harvesting aquatic resources - unintentional effects: large scale happening now whole area/population (>90%) slow but significant deterioration high
Energy production and mining renewable energy likely in short term (within 4 years) small area/few individuals (<10%) slow but significant deterioration low
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) moderate to rapid deterioration high
Invasive and other problematic species and genes problematic native species/diseases - unspecified species happening now some of area/population (10-49%) moderate to rapid deterioration high
Natural system modifications other ecosystem modifications happening now some of area/population (10-49%) moderate to rapid deterioration high

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Sterna dougallii Roseate Tern 10 2 breeding pairs 20 not assessed
Sterna hirundo Common Tern 125 429 breeding pairs 100 favourable
Sterna paradisaea Arctic Tern 1280 2726 breeding pairs 100 favourable
Thalasseus sandvicensis Sandwich Tern 650 1273 breeding pairs 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 A management plan exists but it is out of date or not comprehensive Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity medium
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Ynys Mon / Anglesey Area of Outstanding Natural Beauty 22,010 protected area overlaps with site 59
Ynys Feurig Site of Special Scientific Interest (UK) 25 protected area overlaps with site 25
The Skerries Site of Special Scientific Interest (UK) 17 protected area overlaps with site 17
The Skerries RSPB Reserve 18 protected area contained by site 18
The Skerries Nature Reserve 9 protected area overlaps with site 0
North Anglesey Marine / Gogledd Môn Forol Site of Community Importance (Habitats Directive) 324,949 protected area overlaps with site 0
North Anglesey Heritage Coast 7 protected area overlaps with site 24
Cemlyn Estate Nature Reserve 51 protected area overlaps with site 0
Cemlyn Bay Site of Special Scientific Interest (UK) 44 protected area overlaps with site 44
Bae Cemlyn/ Cemlyn Bay Site of Community Importance (Habitats Directive) 43 protected area overlaps with site 43
Anglesey Terns / Morwenoliaid Ynys Môn Special Protection Area (Birds Directive) 101,931 protected area contains site 86

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Wetlands (inland) Mud flats and sand flats, Salt marshes, Shingle or stony beaches, Coastal lagoons, Standing brackish and salt water -
Coastline Rock stacks and islets -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
not utilised -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Ynys Feurig, Cemlyn Bay and the Skerries. Downloaded from http://www.birdlife.org on 27/06/2022.