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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
Northern Shoveler Spatula clypeata	LC	winter (1997)	82–784 birds	B1i, C3
Northern Shoveler Spatula clypeata	LC	passage (1997)	1,000–10,000 birds	A4i, B1i, C3
Northern Pintail Anas acuta	LC	winter (1997)	387–973 birds	B1i, C3
Northern Pintail Anas acuta	LC	passage (1997)	1,000–10,000 birds	B1i, C3
European Nightjar Caprimulgus europaeus	LC	breeding (1991)	10–100 pairs	C6
Eurasian Spoonbill Platalea leucorodia	LC	passage (1997)	100–500 birds	A4i, B1i, C2
Pied Avocet Recurvirostra avosetta	LC	winter (1997)	128–375 birds	B2
Pied Avocet Recurvirostra avosetta	LC	breeding (1997)	400 pairs	A4i, B1i, B3, C2, C6
Pied Avocet Recurvirostra avosetta	LC	passage (1997)	250–750 birds	B1i, C2
Whimbrel Numenius phaeopus	LC	passage (1991)	10,000–20,000 birds	A4i, B1i, C3
Black-tailed Godwit Limosa limosa	NT	passage (1991)	1,000–10,000 birds	A4i, B1i, C3
Common Redshank Tringa totanus	LC	passage (1997)	1,000–10,000 birds	A4i, B1i, C3
Black Kite Milvus migrans	LC	breeding (1991)	10–100 pairs	B2, C6
Woodlark Lullula arborea	LC	breeding (1991)	10–100 pairs	C6
A4iii Species group - waterbirds	n/a	passage (1997)	20,000-49,999 birds	A4iii, C4

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Chanteloup	Réserve de chasse approuvée (IV)	1
1999	L'Ileau de Champclou	Arrêté de protection de biotope (IV)	<1
2003	Marais D'olonne	Terrain acquis par le Conservatoire du Littoral (IV)	4

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	-	Arable land; Perennial crops, orchards and groves; Ruderal land
Forest	-	Mixed woodland; Alluvial and very wet forest; Broadleaved evergreen woodland
Marine Coastal/Supratidal	-
Marine Intertidal	-
Shrubland	-	Heathland

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

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Marais et forêt d'Olonne (France). Downloaded from https://datazone.birdlife.org/site/factsheet/marais-et-forêt-dolonne-iba-france on 22/12/2024.