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The site was identified as internationally important for bird conservation 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 List	Season (year/s of estimate)	Size	IBA criteria
Brent Goose Branta bernicla	LC	winter (1997)	3,515–7,000 birds	A4i, B1i, C3
Northern Shoveler Spatula clypeata	LC	winter (1997)	76–846 birds	B1i, C3
Northern Shoveler Spatula clypeata	LC	passage (1997)	600 birds	B1i, C3
Northern Pintail Anas acuta	LC	winter (1997)	316–860 birds	B1i, C3
Northern Pintail Anas acuta	LC	passage (1997)	900 birds	B1i, C3
White Stork Ciconia ciconia	LC	breeding (1997)	38 pairs	C6
Eurasian Spoonbill Platalea leucorodia	LC	passage (1997)	50–100 birds	B1i, C2
Purple Heron Ardea purpurea	LC	breeding (1997)	17 pairs	C6
Little Egret Egretta garzetta	LC	breeding (1997)	570–580 pairs	A4i, B1i, C2, C6
Pied Avocet Recurvirostra avosetta	LC	winter (1997)	284–1,815 birds	B2
Pied Avocet Recurvirostra avosetta	LC	passage (1997)	2,000 birds	A4i, B1i, C2
Black-winged Stilt Himantopus himantopus	LC	breeding (1997)	40–70 pairs	C6
Grey Plover Pluvialis squatarola	VU	winter (1997)	1,755–3,720 birds	B1i, C3
Grey Plover Pluvialis squatarola	VU	passage (1997)	2,000 birds	B1i, C3
Eurasian Curlew Numenius arquata	NT	winter (1997)	756–1,849 birds	B2
Red Knot Calidris canutus	NT	winter (1997)	8,860–13,500 birds	A4i, B1i, B2, C3
Red Knot Calidris canutus	NT	passage (1997)	6,000 birds	B1i, C3
Dunlin Calidris alpina	NT	winter (1997)	23,060–35,800 birds	A4i, B1i, B2, C3
Dunlin Calidris alpina	NT	passage (1997)	15,000–20,000 birds	B1i, C3
Common Redshank Tringa totanus	LC	passage (1997)	1,000–1,500 birds	B1i, C3
Black Tern Chlidonias niger	LC	breeding (1997)	10–20 pairs	C6
Western Marsh-harrier Circus aeruginosus	LC	breeding (1997)	100–200 pairs	C6
Montagu's Harrier Circus pygargus	LC	breeding (1996)	30–60 pairs	B3, C6
Black Kite Milvus migrans	LC	breeding (1997)	50–80 pairs	C6
Red-backed Shrike Lanius collurio	LC	breeding (1997)	20–40 pairs	C6
Bluethroat Luscinia svecica	LC	breeding (1997)	100–200 pairs	C6
A4iii Species group - waterbirds	n/a	winter (1997)	20,000-49,999 birds	A4iii, C4
A4iii Species group - waterbirds	n/a	passage (1997)	20,000-49,999 birds	A4iii, C4

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Marais de Broue	Terrain acquis par un conservatoire d'espaces naturels (IV)	1
-	Reserve Naturelle de Moeze	Nature Reserve (-)	25
1977	MARAIS DE MOEZE BROUAGE	Terrain acquis par le Conservatoire du Littoral (IV)	1
1985	Moëze-Oléron	Réserve naturelle nationale (IV)	24
1987	MARAIS DE BROUAGE	Terrain acquis par le Conservatoire du Littoral (IV)	4
1995	MARAIS DU DOUHET	Terrain acquis par le Conservatoire du Littoral (IV)	<1
1997	La Massone	Voluntary Nature Reserve (IV)	<1
2006	Marais D'oleron	Terrain acquis par le Conservatoire du Littoral (IV)	1
2006	Tannes D'arceau	Terrain acquis par le Conservatoire du Littoral (IV)	<1
2007	Marais de Moeze	Marine Protected Area (OSPAR) (UA)	24
2012	La Massonne	Réserve naturelle régionale (IV)	<1
2013	TOUR DE BROUE	Terrain acquis par le Conservatoire du Littoral (IV)	<1
2014	MOULIN DE LA COTE	Terrain acquis par le Conservatoire du Littoral (IV)	<1
2015	Estuaire de la Gironde et de la mer des Pertuis	Parc naturel marin (V)	44
2016	MARAIS ET BOIS MERE	Terrain acquis par le Conservatoire du Littoral (IV)	<1

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	-	Arable land
Forest	-	Broadleaved deciduous woodland
Grassland	-	Humid grasslands
Marine Coastal/Supratidal	-
Marine Intertidal	-
Marine Neritic	-

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

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Ile d'Oléron, marais de Brouage-Saint-Agnant (France). Downloaded from https://datazone.birdlife.org/site/factsheet/ile-doléron-marais-de-brouage-saint-agnant-iba-france on 22/12/2024.