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Location United Kingdom, Wales
Central coordinates 4o 1.70' West  53o 19.12' North
IBA criteria B1i, C3
Area 31 ha
Altitude
Year of IBA assessment 2007

Royal Society for the Protection of Birds



Site description Rocky island on the north Wales coast, important for breeding Phalacrocorax carbo.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Great Cormorant Phalacrocorax carbo breeding  2001-2005  542 breeding pairs  good  B1i, C3  Least Concern 

IBA Monitoring

2007 high near favourable low
Population
Good - based on reliable and complete / representative data

Climate change and severe weather habitat shifting and alteration likely in long term (beyond 4 years) whole area/population (>90%) slow but significant deterioration medium
Energy production and mining renewable energy likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium
Invasive and other problematic species and genes problematic native species/diseases - unspecified species past (and unlikely to return) and no longer limiting some of area/population (10-49%) slow but significant deterioration low
Over-exploitation, persecution and control of species fishing & harvesting aquatic resources - unintentional effects: large scale happening now whole area/population (>90%) slow but significant deterioration high
Pollution industrial & military effluents - type unknown/unrecorded happening now whole area/population (>90%) slow but significant deterioration high

Phalacrocorax carbo Great Cormorant 705 542 breeding pairs 77 near favourable

Whole area of site (>90%) covered by appropriate conservation designation  No management plan exists but the management planning process has begun  Some limited conservation initiatives are in place  low 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Anglesey Area of Outstanding Natural Beauty 21,999 protected area contains site 31  
Puffin Island (Ynys Seiriol) Birds Directive 31 is identical to site 31  
Puffin Island - Ynys Seiriol Site of Special Scientific Interest 32 is identical to site 31  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Coastline Rock stacks and islets; Sea cliffs and rocky shores  major

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Ynys Seiriol/Puffin Island. Downloaded from http://www.birdlife.org on 27/12/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife