Urdaibaiko itsasadarra / Ría de Urdaibai

Quick facts

  • Natura 2000 site (code ES0000144)
  • Under Birds Directive
  • Since November 2000
  • Country: Spain
  • Administrative region: País Vasco (ES21)
  • Surface area: 32 km2 (3242.31 ha)
  • Marine area: 44%
  • Located in Atlantic and Marine Atlantic biogeographical regions
  • It protects 171 species of the Nature Directives
  • It protects 27 habitat types of the Habitats Directive

Source and more information: Natura 2000 Standard Data Form



Species summary

Nature directives' species in this site (171)
Species group Number
Birds 154
Fishes 1
Invertebrates 7
Mammals 6
Reptiles 3

Habitat types

Habitat type code Habitat type english name Cover [ha]
1110 Sandbanks which are slightly covered by sea water all the time 686.51
1130 Estuaries 24.32
1140 Mudflats and sandflats not covered by seawater at low tide 285.58
1150 Coastal lagoons n/a
1170 Reefs 660.23
1230 Vegetated sea cliffs of the Atlantic and Baltic Coasts 32.77
1310 Salicornia and other annuals colonizing mud and sand 5.29
1320 Spartina swards (Spartinion maritimae) 15.4
1330 Atlantic salt meadows (Glauco-Puccinellietalia maritimae) 75.61
1420 Mediterranean and thermo-Atlantic halophilous scrubs (Sarcocornetea fruticosi) 59.71
2110 Embryonic shifting dunes 5.11
2120 Shifting dunes along the shoreline with Ammophila arenaria ('white dunes') 1.19
2130 Fixed coastal dunes with herbaceous vegetation ('grey dunes') 9.56
4030 European dry heaths 4.89
4040 Dry Atlantic coastal heaths with Erica vagans 1.8
4090 Endemic oro-Mediterranean heaths with gorse 2.52
5230 Arborescent matorral with Laurus nobilis 0.78
5310 Laurus nobilis thickets 0.3
6210 Semi-natural dry grasslands and scrubland facies on calcareous substrates (Festuco-Brometalia) (* important orchid sites) 0.9
6510 Lowland hay meadows (Alopecurus pratensis, Sanguisorba officinalis) 135.24
8210 Calcareous rocky slopes with chasmophytic vegetation 0.17
8310 Caves not open to the public 0
91E0 Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae) 11.91
9230 Galicio-Portuguese oak woods with Quercus robur and Quercus pyrenaica 6.49
9260 Castanea sativa woods 0.1
9340 Quercus ilex and Quercus rotundifolia forests 114.55
9380 Forests of Ilex aquifolium 0.5

Designation information

NATURA 2000 is the ecological network for the conservation of wild animals and plant species and natural habitats of Community importance within the Union. It consists of sites classified under the Birds Directive and the Habitats Directive (the Nature Directives).

NATURA 2000 site under

Birds Directive 2009/147/EC (SPA) Under Birds directive
  • Date classified as Special Protection Area (SPA)
November 2000
Habitats Directive 92/43/EEC (SCI) Not under Habitats directive
Date of Standard data form update July 2016

Interactive map

Other resources

Natura 2000 map viewer Interactive map designed for showing and querying Natura 2000 sites. Other information such as Nationally designated areas and LIFE projects are also available.
Protected planet map viewer Interactive map showing the World Database on Protected Areas
European protected sites map viewer Simple interactive map showing Natura 2000 sites and Nationally designated areas
Data download The Natura 2000 dataset is available from the European Environment Agency website
European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Phone: +45 3336 7100