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Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population at site	IBA criteria triggered
Eurasian Bittern Botaurus stellaris	LC	breeding	1997	10 breeding pairs	C6
Common Little Bittern Ixobrychus minutus	LC	breeding	1991	20-25 breeding pairs	B2, C6
Western Marsh-harrier Circus aeruginosus	LC	breeding	1991	20-23 breeding pairs	C6
Bluethroat Luscinia svecica	LC	breeding	1991	20-25 breeding pairs	C6

Note: The current IUCN Red List category may differ from the category that was valid at the time of IBA criteria assessment.

For more information about the IBA criteria, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Vallée d'Acon	Arrêté de protection de biotope	9	protected area is adjacent to site	0
Tourbières et marais de l'Avre	Site of Community Importance (Habitats Directive)	322	protected area overlaps with site	68
Notre-Dame de Vaux	Terrain acquis par un conservatoire d'espaces naturels	10	protected area overlaps with site	0
Moyenne vallée de la Somme	Site of Community Importance (Habitats Directive)	1,825	protected area overlaps with site	1,016
MOYENNE VALLEE DE LA SOMME	Terrain acquis par le Conservatoire du Littoral	120	protected area overlaps with site	0
Marais et tourbières des vallées de la Somme et de l’Avre	Ramsar Site, Wetland of International Importance	13,100	protected area overlaps with site	0
Marais et monts de Mareuil-Caubert	Site of Community Importance (Habitats Directive)	894	protected area overlaps with site	608
Marais de la moyenne Somme entre Amiens et Corbie	Site of Community Importance (Habitats Directive)	525	protected area overlaps with site	99
Marais communal de la Chaussée-Tirancourt	Arrêté de protection de biotope	80	protected area contained by site	0
Le Marais de La Chaussée	Terrain acquis par un conservatoire d'espaces naturels	72	protected area contained by site	0
La Montagne	Terrain acquis par un conservatoire d'espaces naturels	10	protected area overlaps with site	0
Grand marais de la Queue	Arrêté de protection de biotope	15	protected area contained by site	0
Étangs et marais du bassin de la Somme	Special Protection Area (Birds Directive)	5,243	protected area overlaps with site	3,309
Étang Saint-Ladre	Réserve naturelle nationale	13	protected area contained by site	0
Canal de la Somme	Hunting Reserve	0	protected area contained by site	0
Boves	Nature Reserve	13	protected area contained by site	13
Basse vallée de la Somme de Pont-Rémy à Breilly	Site of Community Importance (Habitats Directive)	1,453	protected area overlaps with site	578

IUCN Habitat	Habitat detail	Extent (% of site)
Forest	Alluvial and very wet forest	-
Grassland	Humid grasslands	-
Wetlands (inland)	Standing freshwater, Rivers and streams, Raised bogs, Water fringe vegetation, Fens, transition mires and springs	-
Artificial/Terrestrial	Highly improved re-seeded landscapes, Arable land, Perennial crops, orchards and groves	-

For further information about the IUCN habitat classification, please click here.

Land-use	Extent (% of site)
agriculture	-
fisheries/aquaculture	-
forestry	-
hunting	-
tourism/recreation	-
urban/industrial/transport	-

For further information about the land-use classification, please click here.

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Etangs et marais du bassin de la Somme. Downloaded from http://datazone.birdlife.org/site/factsheet/2373 on 10/06/2023.