|Central coordinates||5o 25.00' East 52o 59.00' North|
|IBA criteria||A4i, A4iii, B1i, C2, C3, C4, C6|
|Year of IBA assessment||2000|
Site description An area of shallow waters, wet meadows and (landward of the dyke) improved grassland along the Frisian west coast. It is a subsite of Lake IJsselmeer (034), and lies adjacent to the Makkumer- and Kooiwaard (035) in the north. This site, together with site 035, formed part of a single, larger site (former site NL016) in the previous pan-European IBA inventory (Grimmett and Jones 1989).
Key Biodiversity Non-breeding numbers are based on aerial counts which tend to underestimate species with a scattered occurrence. The site is an important roost for geese and waders, but actual roosting numbers are poorly reflected by counts. The average seasonal peak number of waterbirds during 1992-1996 exceeded 20,000.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Pied Avocet Recurvirostra avosetta||non-breeding||1988||1,500 individuals||poor||A4i, B1i, C2||Least Concern|
|Black-tailed Godwit Limosa limosa||non-breeding||1986||9,000 individuals||medium||A4i, B1i, C3||Near Threatened|
|Ruff Calidris pugnax||breeding||1991||13 breeding pairs||good||C6||Least Concern|
|Ruff Calidris pugnax||non-breeding||1986||7,000 individuals||poor||C6||Least Concern|
|Common Tern Sterna hirundo||breeding||1991||1,680 breeding pairs||good||C2, C6||Least Concern|
|A4iii Species group - waterbirds||unknown||-||20,000 individuals||unknown||A4iii, C4|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Friese IJsselmeerkust I||Natural Monument||4,800||protected area overlaps with site||550|
|Friese IJsselmeerkust II||Natural Monument||120||protected area overlaps with site||2|
|Workumerwaard||Wetlands of International Importance (Ramsar)||0||protected area overlaps with site||0|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Wetlands (inland)||Standing freshwater||39%|
|Artificial - terrestrial||Highly improved re-seeded landscapes||61%|
|Land-use||Extent (% of site)|
|nature conservation and research||36%|
Protection status National Partial International Partial550 ha of IBA covered by Natural Monument (Friese IJsselmeerkust I, 4,800 ha). 2 ha of IBA covered by Natural Monument (Friese IJsselmeerkust II, 120 ha). 550 ha of IBA covered by Special Protection Area (Friese IJsselmeerkust, 5,130 ha).
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 (2015) Important Bird Areas factsheet: Workumerwaard. Downloaded from http://www.birdlife.org on 05/07/2015
To provide new information to update this factsheet or to correct any errors, please email BirdLife