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Portsmouth Harbour
| Location | United Kingdom, South East |
| Central coordinates | 1o 7.63' West 50o 49.61' North |
| IBA criteria | C7 |
| Area | 1,246 ha |
| Altitude | 0 - 3m |
| Year of IBA assessment | 2007 |
Royal Society for the Protection of Birds
Site description A large industrialized estuary that includes one of the four largest expanses of mudflats and tidal creeks on the south coast of Britain. The IBA holds important numbers of wintering wildfowl and waders. Branta bernicla are the bernicla subspecies.
Populations of IBA trigger species
| Species | Season | Period | Population estimate | Quality of estimate | IBA Criteria | IUCN Category |
|---|---|---|---|---|---|---|
| Brent Goose Branta bernicla | winter | 2001-2006 | 2,925 individuals | good | C7 | Least Concern |
| Grey Plover Pluvialis squatarola | winter | 2001-2006 | 41 individuals | good | C7 | Least Concern |
| Black-tailed Godwit Limosa limosa | winter | 2001-2006 | 264 individuals | good | C7 | Near Threatened |
| Dunlin Calidris alpina | winter | 2001-2006 | 5,672 individuals | good | C7 | Least Concern |
Protected areas
| Protected area | Designation | Area (ha) | Relationship with IBA | Overlap with IBA (ha) | |
|---|---|---|---|---|---|
| Portsmouth Harbour | Birds Directive | 1,249 | is identical to site | 1,246 |
|
| Portsmouth Harbour | Site of Special Scientific Interest | 1,264 | protected area contains site | 1,246 |
|
| Portsmouth Harbour | Wetlands of International Importance (Ramsar) | 1,249 | is identical to site | 1,246 |
|
Habitats
| IUCN habitat | Habitat detail | Extent (% of site) |
|---|---|---|
| Wetlands (inland) | Mud flats and sand flats; Rivers and streams; Salt marshes; Tidal rivers and enclosed tidal waters | 100% |
Land use
| Land-use | Extent (% of site) |
|---|---|
| tourism/recreation | - |
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Portsmouth Harbour. Downloaded from http://www.birdlife.org on 19/06/2013
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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