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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
Brent Goose Branta bernicla	LC	winter	1997	31,841-39,701 individuals	A4i, B1i, C3
Greylag Goose Anser anser	LC	passage	1997	15,000-20,000 individuals	A4i, B1i, C3
Northern Shoveler Spatula clypeata	LC	passage	1997	1,000-2,000 individuals	B1i, C3
Northern Pintail Anas acuta	LC	winter	1997	680-2,560 individuals	B1i, C3
Northern Pintail Anas acuta	LC	passage	1997	3,000-5,000 individuals	B1i, C3
White Stork Ciconia ciconia	LC	breeding	1997	3 breeding pairs	C6
Eurasian Spoonbill Platalea leucorodia	LC	winter	1997	20-37 individuals	B1i, C2
Eurasian Spoonbill Platalea leucorodia	LC	passage	1997	100 individuals	B1i, C2
Little Egret Egretta garzetta	LC	winter	1997	55-1,810 individuals	A4i, B1i, C2
Little Egret Egretta garzetta	LC	breeding	1997	630 breeding pairs	A4i, B1i, C2, C6
Pied Avocet Recurvirostra avosetta	LC	winter	1997	8-136 individuals	B2
Pied Avocet Recurvirostra avosetta	LC	passage	1997	2,000-3,000 individuals	A4i, B1i, C2
Grey Plover Pluvialis squatarola	VU	passage	1997	2,000-3,000 individuals	A4i, B1i, C3
Common Ringed Plover Charadrius hiaticula	LC	winter	1997	18-105 individuals	A4i, B1i, C3
Kentish Plover Charadrius alexandrinus	LC	breeding	1997	30-40 breeding pairs	B2
Eurasian Curlew Numenius arquata	NT	winter	1997	310-2,501 individuals	B2
Bar-tailed Godwit Limosa lapponica	NT	passage	1997	2,000-3,000 individuals	A4i, B1i, C2
Red Knot Calidris canutus	NT	passage	1997	3,000-50,000 individuals	A4i, B1i, C3
Curlew Sandpiper Calidris ferruginea	VU	passage	1997	1,000-20,000 individuals	A4i, B1i, C3
Dunlin Calidris alpina	NT	winter	1997	13,843-25,000 individuals	A4i, B1i, B2, C3
Dunlin Calidris alpina	NT	passage	1997	20,000-30,000 individuals	A4i, B1i, C3
Spotted Redshank Tringa erythropus	LC	passage	1997	500-1,000 individuals	A4i, B1i, C3
Common Redshank Tringa totanus	LC	passage	1997	1,000-2,000 individuals	B1i, C3
Sandwich Tern Thalasseus sandvicensis	LC	breeding	1997	4,200 breeding pairs	A4i, B1i, B2, C2
Osprey Pandion haliaetus	LC	passage	1991	10 individuals	C6
Short-toed Snake-eagle Circaetus gallicus	LC	breeding	1991	5 breeding pairs	C6
Hen Harrier Circus cyaneus	LC	breeding	1991	3-5 breeding pairs	C6
Black Kite Milvus migrans	LC	breeding	1991	30 breeding pairs	C6
Bluethroat Luscinia svecica	LC	breeding	1991	120-130 breeding pairs	C6
A4iii Species group - waterbirds	n/a	passage	1997	50,000-99,999 individuals	A4iii, C4
A4iii Species group - waterbirds	n/a	winter	1997	50,000-99,999 individuals	A4iii, C4

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
-	Parc ornithologique du Teich	Private Reserve	<1
-	Bassin d'Arcachon	Hunting Reserve	2
-	Pres d'Ares et de Lege	Nature Reserve	2
1970	Landes de Gascogne	Parc naturel régional	6
1972	Banc d'Arguin	Réserve naturelle nationale	3
1980	DUNES DU CAP FERRET	Terrain acquis par le Conservatoire du Littoral	<1
1982	ILE DE MALPRAT - PORT DES TUILES	Terrain acquis par le Conservatoire du Littoral	<1
1982	SAINT-BRICE - LE COULIN	Terrain acquis par le Conservatoire du Littoral	<1
1983	Prés salés d'Arès et de Lège-Cap-Ferret	Réserve naturelle nationale	2
1984	DOMAINE DE CERTES ET DE GRAVEYRON	Terrain acquis par le Conservatoire du Littoral	2
1992	Fleury - Delta de l'Eyre	Terrain acquis par le Conservatoire du Littoral	<1
1995	Bassin d'Arcachon et Cap Ferret	Site of Community Importance (Habitats Directive)	56
1995	Vallées de la Grande et de la Petite Leyre	Site of Community Importance (Habitats Directive)	1
1995	Dunes du littoral girondin de la Pointe de Grave au Cap Ferret	Site of Community Importance (Habitats Directive)	1
1998	DUNE DU PILAT	Terrain acquis par le Conservatoire du Littoral	<1
2000	RESERVE NATURELLE DES PRES SALES	Terrain acquis par le Conservatoire du Littoral	1
2004	ILE AUX OISEAUX	Terrain acquis par le Conservatoire du Littoral	1
2006	Bassin d'Arcachon et banc d'Arguin	Special Protection Area (Birds Directive)	2
2006	Banc d'Arguin	Marine Protected Area (OSPAR)	4
2011	Bassin d'Arcachon - Secteur du delta de la Leyre	Ramsar Site, Wetland of International Importance	16
2012	Bassin d'Arcachon et Cap Ferret	Marine Protected Area (OSPAR)	58
2013	PRES-SALES EST DE LA TESTE DE BUCH	Terrain acquis par le Conservatoire du Littoral	<1
2014	Bassin d'Arcachon	Parc naturel marin	87

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland	major (>10)
Grassland	Humid grasslands	major (>10)
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Marine Neritic		major (>10)
Artificial/Aquatic & Marine		minor (<10)

1. IUCN Habitat classification.

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

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Bassin d'Arcachon et Banc d'Arguin (France). Downloaded from https://datazone.birdlife.org/site/factsheet/bassin-darcachon-et-banc-darguin-iba-france on 22/11/2024.