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The site was identified as important in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
European Storm-petrel Hydrobates pelagicus	LC	breeding	1991	1-10 breeding pairs	C6
European Shag Gulosus aristotelis	LC	breeding	1991	525 breeding pairs	B3
Great Black-backed Gull Larus marinus	LC	breeding	1991	350 breeding pairs	B3
Common Tern Sterna hirundo	LC	breeding	1991	20-25 breeding pairs	C6
Sandwich Tern Thalasseus sandvicensis	LC	passage	1991	750-5,000 individuals	A4i, B1i, C2
Dartford Warbler Curruca undata	NT	breeding	1991	1-10 breeding pairs	C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2000) may differ.

Year	Protected Area	Designation	% overlap with IBA
-	FR038	Private Reserve	<1
-	Iles Chausey Maritime	Hunting Reserve	6
1978	POINTE DU MEINGA	Terrain acquis par le Conservatoire du Littoral	<1
1979	Iles Chausey	National Marine Hunting Reserve	<1
1981	ILE BESNARD	Terrain acquis par le Conservatoire du Littoral	<1
1985	ANSE DU VERGER	Terrain acquis par le Conservatoire du Littoral	<1
1985	POINTE DU NICK	Terrain acquis par le Conservatoire du Littoral	<1
1989	POINTE DE LA VARDE	Terrain acquis par le Conservatoire du Littoral	<1
1995	Chausey	Site of Community Importance (Habitats Directive)	7
1995	Cap d'Erquy-Cap Fréhel	Site of Community Importance (Habitats Directive)	8
1995	Côte de Cancale à Paramé	Site of Community Importance (Habitats Directive)	1
1995	Estuaire de la Rance	Site of Community Importance (Habitats Directive)	<1
1995	Baie de Lancieux; Baie de l'Arguenon, Archipel de Saint Malo et Dinard	Site of Community Importance (Habitats Directive)	<1
1995	Havre de Saint-Germain-sur-Ay et Landes de Lessay	Site of Community Importance (Habitats Directive)	<1
1995	Littoral Ouest du Cotentin de Bréhal à Pirou	Site of Community Importance (Habitats Directive)	<1
1997	Anciennes fortifications de la Garde Guérin	Arrêté de protection de biotope	-
1998	ILES CHAUSEY	Terrain acquis par le Conservatoire du Littoral	3
1998	Golf de Dinard	Arrêté de protection de biotope	<1
1998	POINTE DU DECOLLE	Terrain acquis par le Conservatoire du Littoral	<1
2000	HAVRE DE GEFFOSSES	Terrain acquis par le Conservatoire du Littoral	<1
2003	Chausey	Special Protection Area (Birds Directive)	26
2004	Cap d'Erquy-Cap Fréhel	Special Protection Area (Birds Directive)	7
2004	Ilôts Notre-Dame et Chevret	Special Protection Area (Birds Directive)	<1
2005	Havre de la Sienne	Special Protection Area (Birds Directive)	<1
2017	ILE CEZEMBRE	Land acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)	<1

Habitat1	Habitat detail	% of IBA
Artificial/Terrestrial	Arable land	-
Marine Coastal/Supratidal		-
Marine Intertidal		-
Marine Neritic		-
Shrubland	Heathland	-

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	-
fisheries/aquaculture	-
tourism/recreation	-
urban/industrial/transport	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Iles Chausey (France). Downloaded from https://datazone.birdlife.org/site/factsheet/iles-chausey-iba-france on 23/11/2024.