• 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'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Hen Harrier Circus cyaneus	LC	breeding	2002-2004	13 breeding pairs	B2
Merlin Falco columbarius	LC	breeding	1993-1998	9 breeding pairs	C6
Peregrine Falcon Falco peregrinus	LC	breeding	2002	7 breeding pairs	B2

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2007).

Pressure (threats to the trigger species and/or their habitats)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Agricultural expansion and intensification	livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Biological resource use	hunting & collecting terrestrial animals - persecution/control	past (and unlikely to return) and no longer limiting	some of area/population (10-49%)	moderate to rapid deterioration	low
Energy production and mining	renewable energy	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Human intrusions and disturbance	recreational activities	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

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90%) covered by appropriate conservation designation	A management plan exists but it is out of date or not comprehensive	Some limited conservation initiatives are in place	medium

For more information about IBA conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Ysbyty Estate	Nature Reserve	5,471	protected area overlaps with site	0
Snowdonia	National Park	213,985	protected area contains site	19,882
Migneint-Arenig-Dduallt	Special Protection Area (Birds Directive)	19,968	is identical to site	19,882
Migneint-Arenig-Dduallt	Site of Special Scientific Interest (UK)	19,846	protected area overlaps with site	4,108
Migneint-Arenig-Dduallt	Site of Community Importance (Habitats Directive)	19,966	is identical to site	13,992
Llafar River Section	Site of Special Scientific Interest (UK)	2	protected area overlaps with site	0
Cwm Cynfal	Site of Special Scientific Interest (UK)	22	protected area overlaps with site	0
Castell Prysor	Site of Special Scientific Interest (UK)	13	protected area overlaps with site	0
Bryn Glas Quarry	Site of Special Scientific Interest (UK)	7	protected area overlaps with site	0
Amnodd-Bwll Stream Section	Site of Special Scientific Interest (UK)	7	protected area overlaps with site	0

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Wetlands (inland)	Blanket bogs, Rivers and streams, Standing freshwater	-
Forest	Mixed woodland	-
Shrubland	Heathland	-

For more information about the IUCN Habitat classification, please click here.

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Migneint - Arenig - Dduallt. Downloaded from http://datazone.birdlife.org/site/factsheet/migneint--arenig--dduallt-iba-united-kingdom on 28/11/2023.