• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

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

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

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

IUCN Habitat	Habitat detail	Extent (% of site)
Marine Coastal/Supratidal		-
Marine Intertidal		-

For further information about the habitat classification please click here.

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

For further information about the land use classification please click here.

---

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Ynys Feurig, Cemlyn Bay and the Skerries. Downloaded from http://www.birdlife.org on 01/04/2023.