email a friend
printable version
Location United Kingdom, Scotland
Central coordinates 7o 38.52' West  56o 48.81' North
IBA criteria A4ii, A4iii, B1ii, B3, C3, C4
Area 905 ha
Altitude 0 - 273m
Year of IBA assessment 2007

Royal Society for the Protection of Birds

Site description Two islands at the southern end of the Outer Hebridean chain, both with sheer cliffs. The vegetation present comprises maritime grassland, machair and heath. Four to five crofters farm the land. These islands are of major importancefor breeding seabirds waterbirds.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Common Murre Uria aalge breeding  1998  32,470 individuals  good  B1ii, C3  Least Concern 
Razorbill Alca torda breeding  1998  22,900 individuals  good  A4ii, B1ii, B3, C3  Near Threatened 
A4iii Species group - seabirds breeding  1998  52,959 breeding pairs  good  A4iii, C4   

IBA Monitoring

2007 high very unfavourable low
Good - based on reliable and complete / representative data

Climate change and severe weather habitat shifting and alteration happening now whole area/population (>90%) slow but significant deterioration high

Phalacrocorax aristotelis European Shag 720 278 breeding pairs 39 very unfavourable
Uria aalge Common Murre 31940 32470 individuals 100 favourable
Alca torda Razorbill 16866 22900 individuals 100 favourable
Species group - waterbirds A4iii 10010 6004 breeding pairs 60 unfavourable
Species group - seabirds A4iii 45806 52959 breeding pairs 100 favourable

Whole area of site (>90%) covered by appropriate conservation designation  A management plan exists but it is out of date or not comprehensive  Very little or no conservation action taking place  low 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Mingulay and Berneray Site of Special Scientific Interest 911 is identical to site 819  


IUCN habitat Habitat detail Extent (% of site)
Shrubland Heathland  -
Grassland Humid grasslands; Machair  -
Coastline Rock stacks and islets; Sea cliffs and rocky shores  -

Land use

Land-use Extent (% of site)
agriculture 100%

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Mingulay and Berneray. Downloaded from on 26/10/2016

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