• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

The site was identified as internationally important for bird conservation in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Common Eider Somateria mollissima	NT	breeding (2011–2015)	1,005–1,268 pairs	B2
Eurasian Spoonbill Platalea leucorodia	LC	breeding (2011–2015)	231–290 pairs	A4i, B1i, B3, C2, C6
Eurasian Spoonbill Platalea leucorodia	LC	non-breeding (2011–2015)	181–281 birds	B1i, C2
Mew Gull Larus canus	LC	breeding (2011–2015)	134–154 pairs	B3
Lesser Black-backed Gull Larus fuscus	LC	breeding (2011–2015)	4,942–6,543 pairs	B1i, B3, C3
European Herring Gull Larus argentatus	LC	breeding (2011–2015)	2,642–3,119 pairs	B2
Hen Harrier Circus cyaneus	LC	breeding (2011–2015)	1 pairs	C6

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2016. The most recent assessment (2018) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happe­ning now	most of popul­ation/area (50–90%)	rapid decline (>30% over 3 gener­ations)	very high
Natural system modifications	likely in short term (<4 years)	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Whole area (>90%) covered by appropriate conservation designation	A compre­hensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Substantive conservation measures are being implemented, but these are not compre­hensive and are limited by resources and capacity	high

Year	Protected Area	Designation (management category)	% coverage of IBA
1981	Waddenzee I	Natural Monument (-)	15
1986	Waddensea Area	UNESCO-MAB Biosphere Reserve (UA)	33
2009	Duinen Vlieland	Natuurbeschermingswet (IV)	100

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	6	Forestry plantations
Marine Coastal/Supratidal	major (>10)
Marine Intertidal	-

Land use	% of IBA
hunting	100
nature conservation and research	57
tourism/recreation	57
fisheries/aquaculture	7
military	6
urban/industrial/transport	5

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Duinen Vlieland (Netherlands). Downloaded from https://datazone.birdlife.org/site/factsheet/duinen-vlieland-iba-netherlands on 25/12/2024.