Mersey Narrows and North Wirral Foreshore (20806)
United Kingdom, Europe
Site overview
KBA status: confirmed
Global KBA criteria: D1a
Year of last assessment: 2007
National site name: Mersey Narrows and North Wirral Foreshore
Central coordinates: Latitude: 53.4173, Longitude: -3.1328
System: marine, terrestrial
Area of KBA (km2): 22.4125
Protected area coverage (%): 99.35
KBA classification: Global
Legacy site: Yes
Site details
Site description: Extensive intertidal areas in the Mersey estuary mouth and south-west along the coast, including large areas of mudflats and saltmarshes. The IBA is of international importance for wintering wildfowl and waders.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that meets the thresholds for at least one criterion described in the Global Standard for the Identification of KBAs.
Delineation rationale: First identified in 2007, although some small areas were previously included in Mersey Estuary. Used JNCC SSSI boundary, digitised on 1:10,000 scale OS maps.
Habitats
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Marine Coastal/Supratidal | 50 | |
| Marine Intertidal | 50 |