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Location France, Bretagne
Central coordinates 4o 38.00' West  48o 36.00' North
IBA criteria C6
Area 40,909 ha
Altitude 0 - 5m
Year of IBA assessment 2000

Ligue Pour La Protection des Oiseaux

Site description Open sea and several rocky islets with beaches. Human activities include fishing and boating.

Key Biodiversity This site is important for tern colonies.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Sandwich Tern Thalasseus sandvicensis breeding  1991  20-350 breeding pairs  C6  Least Concern 
Common Tern Sterna hirundo breeding  1991  50-150 breeding pairs  C6  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Ilots de Trevors Hunting Reserve 380 protected area contained by site 380  
Ilots de Trevors Private Reserve 1 protected area contained by site 1  


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

Land use

Land-use Extent (% of site)
fisheries/aquaculture -
tourism/recreation -

Protection status National Partial International Partial380 ha of IBA covered by Hunting Reserve (Ilôts de Trevors, 380 ha). 1 ha of IBA covered by Private Reserve (Ilôts de Trevors, 1 ha). 381 ha of IBA covered by Special Protection Area (Ilôts de Trevors, 381 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Ilôts de Trévorc'h. Downloaded from on 27/10/2016

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