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Location Hungary, Gyor-Sopron-Moson
Central coordinates 17o 15.00' East  47o 45.00' North
IBA criteria C6
Area 10,718 ha
Altitude 112 - 116m
Year of IBA assessment 2002

Hungarian Ornithological and Nature Conservation Society

Site description A poorly-drained flood-plain, situated between Kapuvár and Csorna. Human activities are partially controlled, and include mowing and grazing of grasslands, peat extraction, reed-harvesting and hunting.

Key Biodiversity An important area for marshland birds. Numbers of breeding Egretta alba have increased markedly due to artificial flooding on c.1,000 ha. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (2-3 breeding pairs), Haliaeetus albicilla (wintering), Crex crex (4-5 breeding pairs), Otis tarda (1-2 breeding individuals).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Black-crowned Night-heron Nycticorax nycticorax breeding  2001  200 breeding pairs  unknown  C6  Least Concern 
Montagu's Harrier Circus pygargus breeding  2001  5-8 breeding pairs  unknown  C6  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Ferto-Hansági National Park 23,735 protected area overlaps with site 7,086  


IUCN habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest  11%
Grassland Humid grasslands  30%
Wetlands (inland) Raised bogs; Standing freshwater; Water fringe vegetation  5%
Artificial - terrestrial Forestry plantations  54%

Land use

Land-use Extent (% of site)
agriculture 35%
nature conservation and research 70%
forestry 60%

Protection status National Partial International None7,086 ha of IBA covered by National Park (Fertõ-Hanság, 12,543 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Hanság. Downloaded from on 20/10/2016

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