|Central coordinates||7o 4.00' West 43o 33.00' North|
|IBA criteria||A4i, B1i, B2, C3, C6|
|Altitude||0 - 50m|
|Year of IBA assessment||2000|
Ornithological information This is an important area for wintering and passage wildfowl and waders and breeding seabirds. It is also one of the most important sites for waterbirds on the Cantabric coast.
Site description This site includes intertidal mudflats and sandbanks, saltmarsh, cliffs, beaches and a marine section.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Northern Pintail Anas acuta||winter||1996||250-770 individuals||medium||B1i, C3||Least Concern|
|Baillon's Crake Porzana pusilla||resident||1996||30 breeding pairs||medium||B2, C6||Least Concern|
|Yellow-legged Gull Larus michahellis||resident||1996||1,500 breeding pairs||good||A4i, B1i, C3||Least Concern|
|Yellow-legged Gull Larus michahellis||winter||1996||5,400 individuals||good||A4i, B1i, C3||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|As Catedrais - ES1120005||Habitats Directive||304||protected area overlaps with site||127|
|Penarronda-Barayo - ES0000317||Birds Directive||4,267||protected area overlaps with site||2,049|
|Ra de Foz - ES0000373||Birds Directive||564||protected area contained by site||564|
|Ra de Foz - Masma - ES1120011||Habitats Directive||575||protected area overlaps with site||269|
|Ra del Eo - ES1200016||Birds Directive||1,931||protected area overlaps with site||867|
|Ría del Eo||Wetlands of International Importance (Ramsar)||1,740||protected area contained by site||1,740|
|Ria del Eo||National Game Reserve||2,000||protected area overlaps with site||1,800|
|Ribadeo - ES0000085||Birds Directive||1,915||protected area overlaps with site||1,145|
|Ro Eo - ES1120002||Habitats Directive||781||protected area overlaps with site||299|
|Ro Porca - ES1200024||Habitats Directive||65||protected area overlaps with site||2|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Coastline||Mud flats & sand flats; Tidal rivers & enclosed tidal waters||-|
|Wetlands (inland)||Rivers and streams; Water fringe vegetation||-|
|Sea||Open Sea; Sea inlets and coastal features||26%|
|Artificial landscapes (terrestrial)||Arable land; Forestry plantations; Highly improved re-seeded landscapes; Other urban and industrial areas||-|
|Land-use||Extent (% of site)|
Management considerations Threats include intensive fishing and shellfish collection, the abandonment of traditional land-use, and recreation and tourism. A recently built dyke has probably caused a decline in bird numbers.
Protection status National Partial International Partial1,800 ha of IBA covered by National Game Reserve (Ría del Eo, 2,023 ha). 1,740 ha of IBA covered by Ramsar Site (Ría del Eo, 1,740 ha). 1,740 ha of IBA covered by Special Protection Area (Ría del Eo, 1,740 ha).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Eo river estuary-Barayo beach-Ría de Foz. Downloaded from http://www.birdlife.org on 20/06/2013
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