UK097
Ynys Feurig, Cemlyn Bay and the Skerries


IBA Justification

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

Populations meeting IBA criteria ('trigger species') at the site:
Species Red List Season (year/s of estimate) Size IBA criteria
Roseate Tern Sterna dougallii LC breeding (2000) 2 pairs C6
Roseate Tern Sterna dougallii LC breeding (2006) 2 pairs C6
Common Tern Sterna hirundo LC breeding (2000) 184 pairs C6
Common Tern Sterna hirundo LC breeding (2006) 429 pairs C6
Arctic Tern Sterna paradisaea LC breeding (2000) 1,705 pairs C2, C6
Arctic Tern Sterna paradisaea LC breeding (2006) 2,726 pairs C2, C6
Sandwich Tern Thalasseus sandvicensis LC breeding (2000) 450 pairs B2, C2, C6
Sandwich Tern Thalasseus sandvicensis LC breeding (2006) 1,273 pairs A4i, B1i, B2, C2, C6

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2007) is shown below.

IBA conservation assessment
Year of assessment State Pressure Response
2007 good high medium
Whole site assessed? State assessed by Accuracy of information
yes population good

State (condition of the trigger species' populations)
Species Actual vs Reference (units) % remaining Result
Roseate Tern Sterna dougallii 2 / 10 (pairs) 20 not assessed
Common Tern Sterna hirundo 429 / 125 (pairs) 100 good
Arctic Tern Sterna paradisaea 2,726 / 1,280 (pairs) 100 good
Sandwich Tern Thalasseus sandvicensis 1,273 / 650 (pairs) 100 good

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Biological resource use happe­ning now whole of popul­ation/area (>90%) slow decline (1–10% over 3 gener­ations) high
Natural system modifications happe­ning now some of popul­ation/area (10–49%) moderate decline (10–30% over 3 gener­ations) high
Human intrusions and disturbance happe­ning now some of popul­ation/area (10–49%) moderate decline (10–30% over 3 gener­ations) high
Invasive and other problematic species and genes happe­ning now some of popul­ation/area (10–49%) moderate decline (10–30% over 3 gener­ations) high
Energy production and mining likely in short term (<4 years) few indivi­duals/small area (<10%) slow decline (1–10% over 3 gener­ations) low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation Planning Action Result
Whole area (>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

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
- The Skerries RSPB Reserve (-) 21
1957 Cemlyn Bay Site of Special Scientific Interest (UK) (IV) 51
1957 The Skerries Site of Special Scientific Interest (UK) (IV) 20
1961 Ynys Feurig Site of Special Scientific Interest (UK) (IV) 29
1967 Ynys Mon / Anglesey Area of Outstanding Natural Beauty (V) 69
1968 Cemlyn Estate Nature Reserve (V) 26
1983 The Skerries Nature Reserve (Ia) 7
2017 North Anglesey Marine / Gogledd Môn Forol Site of Community Importance (Habitats Directive) (UA) 15

Habitats

Habitat % of IBA Habitat detail
Marine Coastal/Supratidal major (>10)
Marine Intertidal major (>10)

Land use

Land use % of IBA
not utilised -


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Ynys Feurig, Cemlyn Bay and the Skerries (United Kingdom). Downloaded from https://datazone.birdlife.org/site/factsheet/ynys-feurig-cemlyn-bay-and-the-skerries-iba-united-kingdom on 23/12/2024.