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Location United Kingdom, South East
Central coordinates 0o 56.33' West  50o 48.34' North
IBA criteria A4i, A4iii, B1i, B2, C2, C3, C4, C6
Area 5,795 ha
Altitude 0 - 7m
Year of IBA assessment 2007

Royal Society for the Protection of Birds



Site description This site covers two harbours joined by a stretch of water that separates Hayling Island from the mainland. Tidal channels drain the river basins and penetrate far inland. Habitats include extensive mudflats and associated saltmarshes, sand-dunes, islands, and areas of Juncus marsh and reedbed (Phragmites). The IBA is important for breeding terns and wintering and passage wildfowl and waders.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Brent Goose Branta bernicla winter  2001-2006  12,424 individuals  good  A4i, B1i, C3  Least Concern 
Grey Plover Pluvialis squatarola passage  2001-2006  2,005 individuals  good  A4i, B1i, C3  Least Concern 
Grey Plover Pluvialis squatarola winter  2001-2006  2,644 individuals  good  A4i, B1i, C3  Least Concern 
Common Ringed Plover Charadrius hiaticula passage  2001-2006  502 individuals  good  B1i, C3  Least Concern 
Common Redshank Tringa totanus passage  2001-2006  2,700 individuals  good  B1i, C3  Least Concern 
Common Redshank Tringa totanus winter  2001-2006  2,670 individuals  good  B1i, C3  Least Concern 
Black-tailed Godwit Limosa limosa passage  2001-2006  1,328 individuals  good  B1i, C3  Near Threatened 
Black-tailed Godwit Limosa limosa winter  2001-2006  890 individuals  good  B1i, C3  Near Threatened 
Bar-tailed Godwit Limosa lapponica passage  2001-2006  377 individuals  good  B2, C6  Least Concern 
Bar-tailed Godwit Limosa lapponica winter  2001-2006  1,009 individuals  good  A4i, B1i, B2, C2, C6  Least Concern 
Eurasian Curlew Numenius arquata winter  2001-2006  2,047 individuals  good  B2  Near Threatened 
Dunlin Calidris alpina passage  2001-2006  8,184 individuals  good  B2  Least Concern 
Dunlin Calidris alpina winter  2001-2006  31,278 individuals  good  A4i, B1i, B2, C3  Least Concern 
Mediterranean Gull Larus melanocephalus breeding  2001  47 breeding pairs  good  C6  Least Concern 
Sandwich Tern Thalasseus sandvicensis breeding  2000  88 breeding pairs  good  C6  Least Concern 
Sandwich Tern Thalasseus sandvicensis breeding  2006  204 breeding pairs  good  B2, C6  Least Concern 
Little Tern Sternula albifrons breeding  2000  130 breeding pairs  good  B2, C2  Least Concern 
Little Tern Sternula albifrons breeding  2006  68 breeding pairs  good  B2, C2  Least Concern 
A4iii Species group - waterbirds passage  2001-2006  29,142 individuals  good  A4iii, C4   
A4iii Species group - waterbirds winter  2001-2006  81,571 individuals  good  A4iii, C4   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Chichester and Langstone Harbours Birds Directive 5,805 is identical to site 5,795  
Chichester and Langstone Harbours Wetlands of International Importance (Ramsar) 5,810 is identical to site 5,795  
Chichester Harbour Area of Outstanding Natural Beauty 7,400 protected area overlaps with site 3,700  
Chichester Harbour Site of Special Scientific Interest 3,733 protected area contained by site 3,729  
Langstone Harbour RSPB Reserve 558 protected area contained by site 558  
Langstone Harbour Site of Special Scientific Interest 2,086 protected area contained by site 2,080  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland  -
Shrubland Scrub  -
Grassland   -
Wetlands (inland) Coastal lagoons; Mud flats and sand flats; Salt marshes; Sand dunes and beaches; Shingle or stony beaches; Standing freshwater; Tidal rivers and enclosed tidal waters; Water fringe vegetation  -

Land use

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

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Chichester and Langstone Harbours. Downloaded from http://www.birdlife.org on 01/08/2014

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