Illaunmaistir (Oilean Maistir)

IBA Criteria

Year of most recent IBA criteria assessment: 2009

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
European Storm-petrel Hydrobates pelagicus LC breeding 1987 7,500-10,000 breeding pairs A4ii, B1ii, B2, C2, C6
Atlantic Puffin Fratercula arctica VU breeding 1999 1,367 individuals B2
A4iii Species group - seabirds n/a breeding - 10,000-19,999 breeding pairs A4iii, C4

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

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Illanmaster SPA Special Protection Area (Birds Directive) 165 is identical to site 165
Glenamoy Bog Complex SAC Site of Community Importance (Habitats Directive) 13,057 protected area overlaps with site 0


IUCN Habitat Habitat detail Extent (% of site)
Sea Sea inlets and coastal features -
Coastline Sea cliffs and rocky shores -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
fisheries/aquaculture -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Illaunmaistir (Oilean Maistir). Downloaded from on 30/09/2022.