Data Zone
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 |
|---|---|---|---|---|
| Red-billed Chough Pyrrhocorax pyrrhocorax | LC | resident (2000–2004) | 21 pairs | B2, C6 |
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 | medium | 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 | ||
| Red-billed Chough Pyrrhocorax pyrrhocorax | 21 / 9 (pairs) | 100 | good | ||
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Human intrusions and disturbance | likely in short term (<4 years) | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | medium |
| Agricultural expansion and intensification | likely in short term (<4 years) | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Energy production and mining | likely in short term (<4 years) | few individuals/small area (<10%) | moderate decline (10–30% 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90%) covered by appropriate conservation designation | A management plan exists, but it is out of date or not comprehensive | Some limited conservation initiatives are in place | medium |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| - | South Stack Cliffs | RSPB Reserve (-) | 49 |
| 1957 | Glannau Ynys Gybi: Holy Island Coast | Site of Special Scientific Interest (UK) (IV) | 66 |
| 1961 | Glannau Rhoscolyn | Site of Special Scientific Interest (UK) (IV) | 9 |
| 1967 | Ynys Mon / Anglesey | Area of Outstanding Natural Beauty (V) | 100 |
| 1979 | South Stack Cliffs | Nature Reserve (IV) | 44 |
| 1980 | Tre Wilmot | Site of Special Scientific Interest (UK) (IV) | 10 |
| 1999 | Porth Dafarch | Nature Reserve (V) | 1 |
| 2017 | North Anglesey Marine / Gogledd Môn Forol | Site of Community Importance (Habitats Directive) (UA) | 4 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Marine Coastal/Supratidal | - | |
| Shrubland | - | Heathland |
| Land use | % of IBA |
|---|---|
| nature conservation and research | - |
| tourism/recreation | - |
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 23/12/2024.