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Location Denmark, Ribe Amtskommune
Central coordinates 8o 24.00' East  55o 26.00' North
IBA criteria A4i, A4iii, B1i, B2, C2, C3, C4, C6
Area 4,370 ha
Altitude 0 - 21m
Year of IBA assessment 2000

Dansk Ornitologisk Forening

Site description An island in the Wadden Sea surrounded by saltmarshes and mud and sandflats. Terrestrial vegetation mainly comprises various heathland and dune communities and Pinus plantations.

Key Biodiversity This is a very important staging area for geese, ducks and waders with total numbers regularly exceeding 20,000 birds. Several species listed on Annex I of the EC Birds Directive breed at the site, including Botaurus stellaris, Circus aeruginosus, C. pygargus, Recurvirostra avosetta, Sterna paradisaea and S. albifrons.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Northern Pintail Anas acuta passage  1994  2,960 individuals  good  B1i, C3  Least Concern 
Brent Goose Branta bernicla passage  1994  8,100 individuals  good  A4i, B1i, C3  Least Concern 
Common Shelduck Tadorna tadorna passage  1994  7,600 individuals  good  A4i, B1i, C3  Least Concern 
Haematopus ostralegus passage  1994  16,400 individuals  good  A4i, B1i, C3  Not Recognised 
Grey Plover Pluvialis squatarola passage  1994  2,872 individuals  good  A4i, B1i  Least Concern 
Bar-tailed Godwit Limosa lapponica passage  1994  16,700 individuals  good  A4i, B1i, C2  Near Threatened 
Red Knot Calidris canutus passage  1994  7,575 individuals  good  B1i, C3  Near Threatened 
Sanderling Calidris alba passage  1994  2,199 individuals  good  A4i, B1i, C3  Least Concern 
Dunlin Calidris alpina passage  1994  88,500 individuals  good  A4i, B1i, C3  Least Concern 
Little Tern Sternula albifrons breeding  1994  65-75 breeding pairs  good  B2, C6  Least Concern 
A4iii Species group - waterbirds unknown  1994  100,000-499,999 individuals  unknown  A4iii, C4   

IBA Monitoring

2010 not assessed very unfavourable not assessed
Good - based on reliable and complete / representative data

Anas acuta Northern Pintail 2960 120 individuals 5 very unfavourable
Branta leucopsis Barnacle Goose 2800 2800 individuals 100 favourable
Branta bernicla Brent Goose 8100 1325 individuals 17 very unfavourable
Tadorna tadorna Common Shelduck 7600 3840 individuals 51 unfavourable
Mareca penelope Eurasian Wigeon 5500 2680 individuals 49 unfavourable
Spatula clypeata Northern Shoveler 25 7 individuals 29 very unfavourable
Anas crecca Common Teal 1000 515 individuals 52 unfavourable
Somateria mollissima Common Eider 10675 2370 individuals 23 very unfavourable
Circus cyaneus 1 0 breeding pairs 0 very unfavourable
Pluvialis apricaria Eurasian Golden Plover 9000 1890 individuals 21 very unfavourable
Tringa totanus Common Redshank 2500 500 individuals 20 very unfavourable
Numenius arquata Eurasian Curlew 4818 2162 individuals 45 unfavourable
Tringa nebularia Common Greenshank 2465 148 individuals 7 very unfavourable
Calidris alpina Dunlin 59 0 breeding pairs 0 very unfavourable
Larus argentatus 28800 28800 individuals 100 favourable
Sterna nilotica 1 1 breeding pairs 100 favourable
Larus canus Mew Gull 8000 3600 individuals 45 unfavourable
Larus marinus Great Black-backed Gull 2950 2525 individuals 86 near favourable
Larus ridibundus Black-headed Gull 28250 2850 individuals 11 very unfavourable

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Vadehavet (Wadden Sea) Wetlands of International Importance (Ramsar) 150,482 protected area contains site 4,370  


IUCN habitat Habitat detail Extent (% of site)
Shrubland Heathland  35%
Coastline Mud flats & sand flats; Salt marshes; Sand dunes & beaches  50%
Artificial - terrestrial Forestry plantations  15%

Land use

Land-use Extent (% of site)
unknown -

Protection status National Low International High4,370 ha of IBA covered by Special Protection Area (Fanø, 4,370 ha). 4,370 ha of IBA covered by Ramsar Site (Vadehavet (Wadden Sea), 140,830 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Fanø. Downloaded from on 28/10/2016

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