Neusiedler See

IBA Justification

The site was identified as important in 2009 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Greylag Goose Anser anser LC breeding 1997-2005 500-800 breeding pairs B1i, C3
Red-crested Pochard Netta rufina LC breeding 1994 100-200 breeding pairs B1i, C3
Ferruginous Duck Aythya nyroca NT resident 1996 150-200 breeding pairs A1, C1
Garganey Spatula querquedula LC breeding 1997-2005 75-150 breeding pairs B2
Little Grebe Tachybaptus ruficollis LC breeding 1997-2005 500-1,000 breeding pairs A4i, B1i, C3
Spotted Crake Porzana porzana LC resident 1994 30 breeding pairs C6
Little Crake Zapornia parva LC breeding 1997-2005 1,000-2,000 breeding pairs B2, C2, C6
Eurasian Spoonbill Platalea leucorodia LC breeding 1998-2003 40-81 adults B2, C6
Eurasian Bittern Botaurus stellaris LC breeding 2001-2005 20-2,000 breeding pairs B2, C6
Common Little Bittern Ixobrychus minutus LC breeding 1995 60 breeding pairs B2, C6
Black-crowned Night-heron Nycticorax nycticorax LC breeding 1998-2003 1-41 breeding pairs C6
Purple Heron Ardea purpurea LC breeding 1998-2004 86-298 breeding pairs B2, C6
Great White Egret Ardea alba LC breeding 1996 642 breeding pairs A4i, B1i, C2, C6
Black-winged Stilt Himantopus himantopus LC breeding 1997-2005 5-10 breeding pairs C6
Kentish Plover Charadrius alexandrinus LC breeding 2002-2004 2-7 breeding pairs C6
Common Tern Sterna hirundo LC breeding 2002-2005 120 breeding pairs C6
Western Marsh-harrier Circus aeruginosus LC breeding 1995 100-150 breeding pairs C6
Moustached Warbler Acrocephalus melanopogon LC breeding 1997 8,700-15,600 breeding pairs C2, C6
Common Reed-warbler Acrocephalus scirpaceus LC breeding 1997 20,500-42,000 breeding pairs C3
Savi's Warbler Locustella luscinioides LC breeding 1997 1,750 breeding pairs B3
Bluethroat Luscinia svecica LC breeding 2001-2005 frequent C2, C6
A4iii Species group - waterbirds n/a breeding - 50,000-99,999 individuals A4iii, C4

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2009).

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Neusiedlersee, Seewinkel & Hanság Ramsar Site, Wetland of International Importance 44,229 protected area contains site 23,272
Neusiedler See und Umgebung Landschafts- und Naturschutzgebiet 50,088 protected area contains site 0
Neusiedler See - Seewinkel Nationalpark 7,665 protected area overlaps with site 4,000
Neusiedler See - Nordöstliches Leithagebirge Special Protection Area (Birds Directive) 57,125 protected area contains site 23,272
Neusiedler See - Nordöstliches Leithagebirge Site of Community Importance (Habitats Directive) 57,125 protected area contains site 0


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater, Water fringe vegetation -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
fisheries/aquaculture -
other -
tourism/recreation -
nature conservation and research -
not utilised -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Neusiedler See. Downloaded from on 04/10/2023.