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Hellenic Ornithological Society, photo: Christos Toskos
IBA Criteria
A1. Species of global conservation concern Category Criterion The site regularly holds significant numbers of a globally threatened species, or other species of global conservation concern.
A2. Restricted-range species The site is known or thought to hold a significant component of the restricted-range species whose breeding distributions define an Endemic Bird Area (EBA) or Secondary Area (SA).
A3. Biome-restricted species confined to one biome. The site is known or thought to hold a significant assemblage of the species whose breeding distributions are largely or wholly
A4. Congregations (i) The site is known or thought to hold, on a regular basis, ³ 1% of a biogeographic population of a congregatory waterbird species.

 
(ii) The site is known or thought to hold, on a regular basis, ³ 1% of the global population of a congregatory seabird or terrestrial species.

 
(iii) The site is known or thought to hold, on a regular basis, ³ 20,000 waterbirds or ³ 10,000 pairs of seabird of one or more species.

 
(iv) The site is known or thought to be a ‘bottleneck’ site where at least 20,000 storks (Ciconiidae), raptors (Accipitriformes and Falconiformes) or cranes (Gruidae) regularly pass during spring or autumn migration.
B1. Congregations (i) The site is known or thought to hold ³ 1% of a flyway or other distinct population of a waterbird species.

 
(ii) The site is known or thought to hold ³ 1% of a distinct population of a seabird species.

 
(iii) The site is known or thought to hold ³ 1% of a flyway or other distinct population of other congregatory species.

 
(iv) The site is a ‘bottleneck’ site where over 5,000 storks, or over 3,000 raptors or cranes regularly pass on spring or autumn migration.
B2. Species with an unfavourable conservation status in Europe The site is one of the ‘n’ most important in the country for a species with an unfavourable conservation status in Europe (SPEC 2, 3) and for which the site-protection approach is thought to be appropriate.
B3. Species with a favourable conservation status in Europe The site is one of the ‘n’ most important in the country for a species with a favourable conservation status in Europe but concentrated in Europe (SPEC 4) and for which the site-protection approach is thought to be appropriate.
C1. Species of global conservation concern The site regularly holds significant numbers of a globally threatened species, or other species of global conservation concern.
C2. Concentrations of a species threatened at the European Union level The site is known to regularly hold at least 1% of a flyway population or of the EU population of a species threatened at the EU level (listed on Annex I and referred to in Article 4.1 of the EC Birds Directive).
C3. Congregations of migratory species not threatened at the EU level The site is known to regularly hold at least 1% of a flyway population of a migratory species not considered threatened at the EU level (as referred to in Article 4.2 of the EC Birds Directive) (not listed on Annex I).
C4. Congregatory – large congregations The site is known to regularly hold at least 20,000 migratory waterbirds and/or 10,000 pairs of migratory seabirds of one or more species.
C5. Congregatory – bottleneck sites The site is a ‘bottleneck’ site where at least 5,000 storks (Ciconiidae) and/or at least 3,000 raptors (Accipitriformes and Falconiformes) and/or 3,000 cranes (Gruidae) regularly pass on spring or autumn migration.
C6. Species threatened at the European Union level The site is one of the five most important in the European region (NUTS region) in question for a species or subspecies considered threatened in the European Union (i.e. listed in Annex I of the EC Birds Directive).
C7. Other ornithological criteria The site has been designated as a Special Protection Area (SPA) or selected as a candidate SPA based on ornithological criteria (similar to but not equal to C1–C6) in recognized use for identifying SPAs.
Source: Important Areas for the Birds of Greece
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Hellenic Ornithological Society
Important Bird Areas
Important Bird Areas of Greece
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Themistokleous 80, GR-10681, Athens, Greece, Tel/Fax: +30 210 8227937, +30 210 8228704, e-mail: info@ornithologiki.gr
Komninon 23, GR-54624, Thessaloniki, Greece, Tel/ Fax: +30 2310 244245, e-mail: thess@ornithologiki.gr