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Location Hungary, Fejér
Central coordinates 18o 31.00' East  47o 10.00' North
IBA criteria C3, C6
Area 1,971 ha
Altitude 102 - 112m
Year of IBA assessment 2002

Hungarian Ornithological and Nature Conservation Society

Site description Lake Velence is the third-largest lake in the country, measuring 10.5 km in length and 3.3 km in breadth, with an average depth of 1-2 m. There are extensive reed-beds with Phragmites and Typha, and adjacent wet meadows. Human activities include fishing, angling, sailing, boating and reed-harvesting (`Other' land-use, below).

Key Biodiversity An important site for breeding herons (Ardeidae) and ducks, and as a roosting site for geese in winter. Breeding species of global conservation concern that do not meet IBA criteria: Aythya nyroca (4-5 pairs).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Bean Goose Anser fabalis passage  1997-2000  20,000-35,000 individuals  C3  Least Concern 
Greater White-fronted Goose Anser albifrons passage  1997-2000  3,500 individuals  C3  Least Concern 
Greylag Goose Anser anser passage  1997-2000  500-1,000 individuals  C3  Least Concern 
Eurasian Spoonbill Platalea leucorodia breeding  1997-2000  58-119 breeding pairs  C6  Least Concern 
Bluethroat Luscinia svecica breeding  1997-2000  23-27 breeding pairs  C6  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Dinnyési Ferto Nature Conservation Area 566 protected area contained by site 539  
Velence-Dinnyés Wetlands of International Importance (Ramsar) 965 protected area contained by site 965  
Velencei Madárrezervátum Nature Conservation Area 418 protected area contained by site 420  


IUCN habitat Habitat detail Extent (% of site)
Grassland Humid grasslands  10%
Wetlands (inland) Standing freshwater; Water fringe vegetation  70%
Artificial - terrestrial Arable land; Forestry plantations; Other urban and industrial areas  20%

Land use

Land-use Extent (% of site)
agriculture 15%
nature conservation and research 30%
tourism/recreation 40%
water management 70%
other 25%

Protection status National Partial International Partial539 ha of IBA covered by Nature Conservation Area (Dinnyési Fertõ, 539 ha). 420 ha of IBA covered by Nature Conservation Area (Velencei madarrezervatum, 420 ha). 965 ha of IBA covered by Ramsar Site (Velence-Dinnyés, 965 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Velence Lake–Dinnyés Lake. Downloaded from on 27/10/2016

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