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Location Greece, Ipiros
Central coordinates 20o 30.00' East  39o 15.00' North
IBA criteria A3, A4i, B1i, C2, C6
Area 6,000 ha
Altitude 0 - 350m
Year of IBA assessment 2000

Hellenic Ornithological Society

Site description The inland part of the site consists of arable cultivation and a gorge with cliffs, deciduous forest and scrub. The coastal delta includes brackish marshes and low, scrub-dominated hills. Human activities include arable agriculture, livestock-farming, recreation and hunting.

Key Biodiversity The site is important for breeding, passage and wintering waterbirds and raptors. Breeding birds include eight of the 21 species in Europe that are restricted (when breeding) to the Mediterranean biome. Species of global conservation concern that do not meet IBA criteria: Phalacrocorax pygmeus (wintering), Pelecanus crispus (non-breeding), Aythya nyroca (non-breeding), Gallinago media (passage).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Rock Partridge Alectoris graeca resident  1994  common  A3  Near Threatened 
Glossy Ibis Plegadis falcinellus passage  1996  250 individuals  A4i, B1i, C2  Least Concern 
Bonelli's Eagle Aquila fasciata resident  1994  2 breeding pairs  C6  Least Concern 
Olive-tree Warbler Hippolais olivetorum breeding  1994  uncommon  A3  Least Concern 
Sardinian Warbler Sylvia melanocephala resident  1995  common  A3  Least Concern 
Subalpine Warbler Sylvia cantillans breeding  1995  common  A3  Least Concern 
Western Rock-nuthatch Sitta neumayer resident  1995  frequent  A3  Least Concern 
Black-eared Wheatear Oenanthe hispanica breeding  1995  common  A3  Least Concern 
Black-headed Bunting Emberiza melanocephala breeding  1994  frequent  A3  Least Concern 
Cretzschmar's Bunting Emberiza caesia breeding  1994  uncommon  A3  Least Concern 


IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland; Broadleaved evergreen woodland  20%
Shrubland Sclerophyllous scrub, garrigue and maquis  15%
Wetlands (inland) Rivers and streams; Standing freshwater; Water fringe vegetation  -
Coastline Sand dunes & beaches  -
Artificial - terrestrial Arable land  20%
Rocky areas Inland cliffs; Scree & boulders  5%

Land use

Land-use Extent (% of site)
agriculture 60%
tourism/recreation 20%

Protection status National None International None

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Acheron delta and gorge. Downloaded from on 24/10/2016

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