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Location Greece, Sterea Ellada
Central coordinates 22o 32.00' East  38o 51.00' North
IBA criteria A1, A4i, A4iii, B1i, B2, C1, C2, C4, C6
Area 34,000 ha
Altitude 0 - 1,000m
Year of IBA assessment 2000

Hellenic Ornithological Society

Site description The site contains the estuary of the Sperchios river, an area of extensive saltmarshes and reedbeds (Phragmites). Along the river is a mosaic of riverine forest, wet grassland and freshwater marsh.

Key Biodiversity This is an important area for species characteristic of riverine forest, reedbed and open water. Species of global conservation concern that do not meet IBA criteria: Phalacrocorax pygmeus (passage, wintering), Aquila clanga (wintering), Falco naumanni (breeding). The site regularly holds 20,000 or more waterbirds in winter (including Anas crecca 4,250; Recurvirostra avosetta 1,310).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Ferruginous Duck Aythya nyroca passage  present  A1, C1  Near Threatened 
Pied Avocet Recurvirostra avosetta winter  1990  1,310 individuals  medium  A4i, B1i, B2, C6  Least Concern 
Slender-billed Curlew Numenius tenuirostris non-breeding  1963  1 individuals  good  A1, C1  Critically Endangered 
Slender-billed Gull Larus genei winter  1994  frequent  A4i, B1i, C2  Least Concern 
Little Tern Sternula albifrons breeding  1996  frequent  C6  Least Concern 
A4iii Species group - waterbirds unknown  20,000 individuals  unknown  A4iii, C4   


IUCN habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest  5%
Shrubland Sclerophyllous scrub, garrigue and maquis  10%
Wetlands (inland) Rivers and streams; Water fringe vegetation  -
Sea Sea inlets and coastal features  30%
Artificial - terrestrial Arable land  -
Coastline Mud flats & sand flats; Salt marshes; Sand dunes & beaches; Tidal rivers & enclosed tidal waters  -

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
water management -

Protection status National Low International Partial1,225 ha of IBA covered by Wildlife Refuge (Ekvoles Sperchiou, 1,225 ha). 3,800 ha of IBA covered by Special Protection Area (Ygrotopos Ekvolon (Delta) Sperchiou, 3,966 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Spercheios valley and delta and Maliakos gulf. Downloaded from on 26/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife