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

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') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Red-billed Chough Pyrrhocorax pyrrhocorax	LC	resident	2000-2004	21 breeding pairs	B2, C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

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.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Red-billed Chough Pyrrhocorax pyrrhocorax	9	21	breeding pairs	100	favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Human intrusions and disturbance	likely in short term (within 4 years)	some of area/population (10-49%)	moderate to rapid deterioration	medium
Agricultural expansion and intensification	likely in short term (within 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Energy production and mining	likely in short term (within 4 years)	small area/few individuals (<10%)	moderate to rapid deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other 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90%) covered by appropriate conservation designation	A management plan exists but it is out of date or not comprehensive	Some limited conservation initiatives are in place	medium

Year	Protected Area	Designation	% overlap with IBA
-	South Stack Cliffs	RSPB Reserve	49
1957	Glannau Ynys Gybi: Holy Island Coast	Site of Special Scientific Interest (UK)	66
1961	Glannau Rhoscolyn	Site of Special Scientific Interest (UK)	9
1967	Ynys Mon / Anglesey	Area of Outstanding Natural Beauty	100
1979	South Stack Cliffs	Nature Reserve	44
1980	Tre Wilmot	Site of Special Scientific Interest (UK)	10
1995	Glannau Ynys Gybi/ Holy Island Coast	Site of Community Importance (Habitats Directive)	76
1996	Glannau Ynys Gybi/ Holy Island Coast	Special Protection Area (Birds Directive)	100
1999	Porth Dafarch	Nature Reserve	1
2017	North Anglesey Marine / Gogledd Môn Forol	Site of Community Importance (Habitats Directive)	4

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		-
Shrubland	Heathland	-

1. IUCN Habitat classification.

Land use	% of IBA
nature conservation and research	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Glannau Ynys Gybi/Holy Island Coast (United Kingdom). Downloaded from https://datazone.birdlife.org/site/factsheet/glannau-ynys-gybi-holy-island-coast-iba-united-kingdom on 23/11/2024.