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Location Netherlands, Friesland
Central coordinates 6o 3.00' East  53o 27.00' North
IBA criteria A4i, A4iii, B1i, C3, C4
Area 720 ha
Altitude 0 - 1m
Year of IBA assessment 2000

Vogelbescherming Nederland

Site description An eroded islet in the Wadden Sea (site 001 encloses the entire site) between Schiermonnikoog, Ameland, and the mainland. The site consists of bare intertidal sandbanks and mudflats.

Key Biodiversity An important high-water roost for numerous waders, especially Pluvialis squatarola and Numenius arquata. The average seasonal peak number of waterbirds during 1992-1996 exceeded 20,000. The site lost its breeding colony of terns Sterna during the early 1980s as a result of leveling by erosion.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Grey Plover Pluvialis squatarola non-breeding  1990-1992  2,104 individuals  good  A4i, B1i, C3  Least Concern 
Eurasian Curlew Numenius arquata non-breeding  1989-1992  5,441 individuals  good  A4i, B1i, C3  Near Threatened 
A4iii Species group - waterbirds 20,000 individuals  unknown  A4iii, C4   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
The Wadden Sea World Heritage Site 968,393 protected area contains site 720  
Waddenzee (Wadden Sea) Wetlands of International Importance (Ramsar) 249,998 protected area contains site 720  
Waddenzee I Natural Monument 125,000 protected area contains site 720  


IUCN habitat Habitat detail Extent (% of site)
Coastline Mud flats & sand flats  100%

Land use

Land-use Extent (% of site)
fisheries/aquaculture 50%
nature conservation and research 100%
tourism/recreation 100%

Protection status National High International High720 ha of IBA covered by Natural Monument (Waddenzee I, 125,000 ha). 720 ha of IBA covered by Special Protection Area (Waddenzee, `250,000 ha' [official, incorrect figure]). 720 ha of IBA covered by Ramsar Site (Waddenzee, `250,000 ha' [official, incorrect figure]).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Engelsmanplaat. Downloaded from on 21/10/2016

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