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• Text account
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• Reference and further resources

The site was identified as important 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 List1	Season	Year(s)	Size	IBA criteria
Northern Pintail Anas acuta	LC	winter	2001-2006	615 individuals	B1i, C3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2007) may differ.

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.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Brent Goose Branta bernicla	3,010	2,423	individuals	81	near favourable
Northern Pintail Anas acuta	600	615	individuals	100	favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	likely in short term (within 4 years)	small area/few individuals (<10%)	moderate to rapid deterioration	low
Invasive and other problematic species and genes	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Pollution	happening now	small area/few individuals (<10%)	slow but significant deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A management plan exists but it is out of date or not comprehensive	Some limited conservation initiatives are in place	medium

Year	Protected Area	Designation	% overlap with IBA
1964	Pagham Harbour	Local Nature Reserve	77
1986	Pagham Harbour	Site of Special Scientific Interest (UK)	100
1988	Pagham Harbour	Ramsar Site, Wetland of International Importance	100
1993	Pagham Harbour	Special Protection Area (Birds Directive)	100
2011	Pagham Harbour	Marine Protected Area (OSPAR)	51
2012	Pagham Harbour	Nature Reserve	49
2013	Pagham Harbour	Marine Conservation Zone	44
2014	Pagham Harbour	Marine Protected Area (OSPAR)	41

Habitat1	Habitat detail	% of IBA
Grassland	Mesophile grasslands, Humid grasslands	major (>10)
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Forest	Broadleaved deciduous woodland	minor (<10)
Marine Neritic		minor (<10)
Shrubland	Scrub	minor (<10)

1. IUCN Habitat classification.

Land use	% of IBA
nature conservation and research	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Pagham Harbour (United Kingdom). Downloaded from https://datazone.birdlife.org/site/factsheet/pagham-harbour-iba-united-kingdom on 23/11/2024.