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Location France, Bretagne
Central coordinates 3o 28.00' West  48o 53.00' North
IBA criteria A4ii, A4iii, B1ii, B2, B3, C3, C4, C6
Area 4,300 ha
Altitude 0 - 56m
Year of IBA assessment 2000

Ligue Pour La Protection des Oiseaux

Site description Several rocky islands with sand and shingle-beaches and areas of open sea.

Key Biodiversity This is the most important seabird colony in France.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
European Storm-petrel Hydrobates pelagicus breeding  1997  14-17 breeding pairs  C6  Least Concern 
Northern Gannet Morus bassanus breeding  1997  13,500 breeding pairs  A4ii, B1ii, B2, C3  Least Concern 
European Shag Phalacrocorax aristotelis breeding  1997  346 breeding pairs  B3  Least Concern 
Lesser Black-backed Gull Larus fuscus breeding  1997  821 breeding pairs  B3  Least Concern 
A4iii Species group - seabirds breeding  1997  20,000-49,999 individuals  unknown  A4iii, C4   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Les Sept iles Hunting Reserve 4,300 protected area contained by site 4,300  
Sept Iles National Nature Reserve 320 protected area contained by site 280  


IUCN habitat Habitat detail Extent (% of site)
Sea Open Sea  -
Coastline Rock stacks and islets; Shingle & stony beaches  -

Land use

Land-use Extent (% of site)
not utilised -

Protection status National High International High4,300 ha of IBA covered by Hunting Reserve (Les Sept-Iles, 4,300 ha). 280 ha of IBA covered by Nature Reserve (Sept-Iles, 280 ha). 4,300 ha of IBA covered by Special Protection Area (Archipel des Sept-Iles, 4,300 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Archipel des Sept-Iles. Downloaded from on 26/10/2016

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