email a friend
printable version
Location Iceland, Árnessýsla
Central coordinates 21o 0.00' West  64o 10.00' North
IBA criteria B1i, B2
Area 500 ha
Altitude 15 - 100m
Year of IBA assessment 2000

Fuglavernd - BirdLife Iceland (Partner Designate)

Site description A major freshwater river that drains Lake Thingvallavatn. Land-uses also include angling (salmon fishing), hydroelectric generation and holiday-homes. The area belongs to three communities: Grafningshreppur, ölfushreppur and Grímsneshreppur.

Key Biodiversity One of the few wintering sites for Bucephala islandica in Iceland away from Mývatn-Laxá (site 044). Also overwintering, in notable numbers, are Bucephala clangula (one of the few wintering sites in Iceland) and Mergus serrator.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Whooper Swan Cygnus cygnus passage  200 individuals  B1i  Least Concern 
Barrow's Goldeneye Bucephala islandica winter  1987-1989  100-150 individuals  medium  B2  Least Concern 
Goosander Mergus merganser winter  1993  36 individuals  B1i  Least Concern 


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Rivers and streams; Standing freshwater  100%

Land use

Land-use Extent (% of site)
agriculture -

Protection status National None International None

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Sog. Downloaded from on 25/10/2016

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