IBA Criteria

Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Common Shelduck Tadorna tadorna LC non-breeding 1987-1991 5,201 individuals A4i, B1i, C3
Northern Pintail Anas acuta LC non-breeding 1987-1991 871 individuals B1i, C3
Eurasian Spoonbill Platalea leucorodia LC non-breeding 1987-1991 144 individuals B1i, C2, C6
Eurasian Oystercatcher Haematopus ostralegus NT non-breeding 1987-1991 31,037 individuals A4i, B1i, C3
Pied Avocet Recurvirostra avosetta LC breeding 1987-1991 384 breeding pairs A4i, B1i, B3, C2, C6
Pied Avocet Recurvirostra avosetta LC non-breeding 1988-1991 1,215 individuals A4i, B1i, C2
Eurasian Curlew Numenius arquata NT non-breeding 1987-1991 13,348 individuals A4i, B1i, C3
Bar-tailed Godwit Limosa lapponica NT winter 1987-1991 1,027 individuals A4i, B1i, B2, C2
Ruddy Turnstone Arenaria interpres LC non-breeding 1987-1991 832 individuals A4i, B1i, C3
Red Knot Calidris canutus NT winter 1987-1991 32,560 individuals A4i, B1i, B2, C3
Dunlin Calidris alpina LC non-breeding 1987-1991 34,995 individuals A4i, B1i, C3
Spotted Redshank Tringa erythropus LC non-breeding 1987-1991 1,177 individuals A4i, B1i, C3
Common Redshank Tringa totanus LC non-breeding 1987-1991 2,652 individuals B1i, C3
Black Tern Chlidonias niger LC passage 1989-1991 90,367 individuals A4i, B1i, C2, C6
Common Tern Sterna hirundo LC breeding 1987-1991 1,035 breeding pairs C2, C6
A4iii Species group - waterbirds n/a passage 1991 50,000-99,999 individuals A4iii, C4
A4iii Species group - waterbirds n/a non-breeding 1991 100,000-499,999 individuals A4iii, C4

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Waddenzee I Natural Monument 125,000 protected area contains site 6,000
Waddenzee (Wadden Sea) Ramsar Site, Wetland of International Importance 249,998 protected area contains site 6,000
Waddenzee Special Protection Area (Birds Directive) 1,832 protected area contains site 6,000
Waddenzee Site of Community Importance (Habitats Directive) 249,170 protected area contains site 6,000


IUCN Habitat Habitat detail Extent (% of site)
Coastline Tidal rivers & enclosed tidal waters, Mud flats & sand flats -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
nature conservation and research -
tourism/recreation -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Balgzand. Downloaded from on 19/02/2020.