IJzervallei-De Blankaart

IBA Justification

The site was identified as important in 2000 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
Tundra Swan Cygnus columbianus LC winter - 50-80 individuals B2
Northern Shoveler Spatula clypeata LC winter - 400-850 individuals B1i, C3
Eurasian Wigeon Mareca penelope LC winter - 25,000-55,000 individuals A4i, B1i, C3
Northern Pintail Anas acuta LC winter - 100-900 individuals B1i, C3
Common Teal Anas crecca LC winter - 1,000-5,000 individuals B1i, C3
Black Tern Chlidonias niger LC passage - 50 individuals C2
Western Marsh-harrier Circus aeruginosus LC breeding 1996 6-8 breeding pairs C6
A4iii Species group - waterbirds n/a winter - 20,000-49,999 individuals A4iii, C4

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2000).

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Ijzervallei Special Protection Area (Birds Directive) 5,136 protected area overlaps with site 5,100
Ijzerbroeken Vlaams natuurreservaat 92 protected area overlaps with site 0
De IJzervallei Vlaams Ecologisch Netwerk 824 protected area contained by site 0
De Ijzerbroeken te Diksmuide en Lo-Reninge Ramsar Site, Wetland of International Importance 2,360 protected area overlaps with site 2,360
Blankaart Erkend natuurreservaat 318 protected area contained by site 0
Blankaart Nature Reserve 113 protected area contained by site 113


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Forest -
Grassland Humid grasslands -
Wetlands (inland) Standing freshwater, Water fringe vegetation -
Artificial/Terrestrial Highly improved re-seeded landscapes, Arable land -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
agriculture -
hunting -
tourism/recreation -
water management -
nature conservation and research -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: IJzervallei-De Blankaart. Downloaded from on 03/10/2023.