Data Zone
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 |
|---|---|---|---|---|
| Velvet Scoter Melanitta fusca | VU | winter (1997) | 100 birds | B2 |
| Common Shelduck Tadorna tadorna | LC | winter (1997) | 8,000–16,800 birds | A4i, B1i, C3 |
| Northern Pintail Anas acuta | LC | winter (1997) | 438–1,229 birds | B1i, C3 |
| Northern Pintail Anas acuta | LC | passage (1997) | 500–1,500 birds | B1i, C3 |
| European Nightjar Caprimulgus europaeus | LC | breeding (1991) | 25 pairs | C6 |
| Spotted Crake Porzana porzana | LC | breeding (1991) | 1–5 pairs | C6 |
| Little Crake Zapornia parva | LC | breeding (1991) | 1–4 pairs | C6 |
| Eurasian Spoonbill Platalea leucorodia | LC | passage (1997) | 10–100 birds | B1i, C2 |
| Eurasian Bittern Botaurus stellaris | LC | breeding (1997) | 3–5 pairs | C6 |
| Little Egret Egretta garzetta | LC | breeding (1997) | 10–12 pairs | C6 |
| Eurasian Oystercatcher Haematopus ostralegus | NT | winter (1997) | 5,426–11,400 birds | A4i, B1i, C3 |
| Pied Avocet Recurvirostra avosetta | LC | breeding (1997) | 89–94 pairs | B3, C6 |
| Grey Plover Pluvialis squatarola | VU | winter (1997) | 305–5,053 birds | A4i, B1i, C3 |
| Grey Plover Pluvialis squatarola | VU | passage (1997) | 500–6,000 birds | A4i, B1i, C3 |
| Little Ringed Plover Charadrius dubius | LC | passage (1996) | 1,000–3,500 birds | A4i, B1i, C3 |
| Kentish Plover Charadrius alexandrinus | LC | breeding (1997) | 48–51 pairs | B2 |
| Eurasian Curlew Numenius arquata | NT | winter (1997) | 551–5,302 birds | A4i, B1i, B2, C3 |
| Bar-tailed Godwit Limosa lapponica | NT | winter (1997) | 15–800 birds | B2 |
| Red Knot Calidris canutus | NT | winter (1997) | 55–8,070 birds | B1i, B2, C3 |
| Red Knot Calidris canutus | NT | passage (1997) | 500–6,000 birds | B1i, C3 |
| Sanderling Calidris alba | LC | passage (1997) | 1,000–1,500 birds | A4i, B1i, C3 |
| Dunlin Calidris alpina | NT | winter (1997) | 6,300–21,851 birds | B1i, B2, C3 |
| Short-eared Owl Asio flammeus | LC | breeding (1991) | 2–3 pairs | C6 |
| Bluethroat Luscinia svecica | LC | breeding (1991) | 35–40 pairs | C6 |
| A4iii Species group - waterbirds | n/a | passage (1997) | 20,000-49,999 birds | A4iii, C4 |
| A4iii Species group - waterbirds | n/a | winter (1997) | 20,000-49,999 birds | A4iii, C4 |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| - | Baie de Somme Maritime | Hunting Reserve (-) | 1 |
| - | Baie de Somme Terrestre | Hunting Reserve (-) | <1 |
| - | Authie-Somme | Hunting Reserve (-) | 8 |
| - | Parc Ornithologique du Marque terre | Private Reserve (-) | <1 |
| 1979 | LE MARQUENTERRE | Terrain acquis par le Conservatoire du Littoral (IV) | <1 |
| 1980 | LE BOIS HOUDANT | Terrain acquis par le Conservatoire du Littoral (IV) | <1 |
| 1981 | BAIE D'AUTHIE RIVE SUD | Terrain acquis par le Conservatoire du Littoral (IV) | <1 |
| 1982 | DUNES DE L'AUTHIE | Terrain acquis par le Conservatoire du Littoral (IV) | <1 |
| 1986 | Baie D'Authie Rive Nord | Terrain acquis par le Conservatoire du Littoral (IV) | <1 |
| 1986 | Hable D'ault | Terrain acquis par le Conservatoire du Littoral (IV) | <1 |
| 1991 | BAIE ET BASSE VALLEE DE LA SOMME | Terrain acquis par le Conservatoire du Littoral (IV) | <1 |
| 1994 | Baie de Somme | Réserve naturelle nationale (IV) | 2 |
| 2000 | POINTE DU HOURDEL | Terrain acquis par le Conservatoire du Littoral (IV) | - |
| 2003 | DUNES DE STELLA MERLIMONT | Terrain acquis par le Conservatoire du Littoral (IV) | <1 |
| 2004 | Cordon de galets de La Mollière | Arrêté de protection de biotope (IV) | <1 |
| 2006 | Baie de Somme | Marine Protected Area (OSPAR) (UA) | 2 |
| 2007 | RENCLOTURE DE LA GAITE | Terrain acquis par le Conservatoire du Littoral (IV) | - |
| 2012 | Estuaires picards et mer d'Opale | Parc naturel marin (V) | 82 |
| 2012 | Littoral Cauchois | Marine Protected Area (OSPAR) (UA) | <1 |
| 2016 | Hâble d'Ault | Arrêté de protection de biotope (IV) | <1 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Forest | 8 | Native coniferous woodland; Mixed woodland; Alluvial and very wet forest |
| Grassland | 5 | Humid grasslands |
| Marine Intertidal | major (>10) | |
| Marine Neritic | major (>10) | |
| Artificial/Terrestrial | minor (<10) | Arable land |
| Land use | % of IBA |
|---|---|
| agriculture | - |
| fisheries/aquaculture | - |
| hunting | - |
| tourism/recreation | - |
| urban/industrial/transport | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Estuaires picards : baies de Somme et d'Authie (France). Downloaded from
https://datazone.birdlife.org/site/factsheet/estuaires-picards-:-baies-de-somme-et-dauthie-iba-france on 23/12/2024.