UK097
Ynys Feurig, Cemlyn Bay and the Skerries


IBA Justification

The site was identified as important in 2007 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
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

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2007).


IBA Conservation

IBA conservation assessment
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2007 favourable high medium
Was the whole site assessed? State assessed by Accuracy of information
yes population good

State (condition of the trigger species' populations)
Scientific name Common name Reference population Actual population Units % of population 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

Pressure (threats to the trigger species and/or their habitats)
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

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation Management planning Other 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 conservation status, please click here

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA 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 Nature Reserve 9 protected area overlaps with site 0
The Skerries RSPB Reserve 18 protected area contained by site 18
The Skerries Site of Special Scientific Interest (UK) 17 protected area overlaps with site 17
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

Habitat (IUCN level 1) Habitat detail Extent (% of site)
Marine Coastal/Supratidal -
Marine Intertidal -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
not utilised -


Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Ynys Feurig, Cemlyn Bay and the Skerries. Downloaded from http://datazone.birdlife.org/site/factsheet/ynys-feurig-cemlyn-bay-and-the-skerries-iba-united-kingdom on 23/09/2023.