|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
|For more information about IBA monitoring please click here|
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.
BirdLife International (2019) Important Bird Areas factsheet: Portsmouth Harbour. Downloaded from http://www.birdlife.org on 21/08/2019.