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• Reference and further resources

The site was identified as internationally important for bird conservation in 2007 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
Eurasian Bittern Botaurus stellaris	LC	winter (1995–1996)	5 birds	C6
Hen Harrier Circus cyaneus	LC	winter (1987)	9 birds	C6

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2007. The most recent assessment (2007) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Human intrusions and disturbance	happe­ning now	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium
Natural system modifications	likely in short term (<4 years)	few indivi­duals/small area (<10%)	slow decline (1–10% over 3 gener­ations)	low

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90%) covered by appropriate conservation designation	A management plan exists, but it is out of date or not compre­hensive	Substantive conservation measures are being implemented, but these are not compre­hensive and are limited by resources and capacity	medium

Year	Protected Area	Designation (management category)	% coverage of IBA
1968	Stodmarsh	National Nature Reserve (IV)	34
1984	Stodmarsh	Site of Special Scientific Interest (UK) (IV)	100

Habitat	% of IBA	Habitat detail
Forest	-	Alluvial and very wet forest
Grassland	-
Shrubland	-	Scrub
Wetlands (inland)	-	Standing freshwater; Rivers and streams; Water fringe vegetation; Fens, transition mires and springs

Land use	% of IBA
nature conservation and research	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Stodmarsh (United Kingdom). Downloaded from https://datazone.birdlife.org/site/factsheet/stodmarsh-iba-united-kingdom on 28/12/2024.