Lough Foyle and River Foyle

Country/territory: United Kingdom

IBA Criteria met: A4i, A4iii, B1i, B2, C2, C3, C4, C6 (2007)
For more information about IBA criteria please click here

Area: 5,182 ha

Royal Society for the Protection of Birds
Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2007 medium very unfavourable low
For more information about IBA monitoring please click here

Site description
A large shallow estuary comprising extensive mudflats, shell ridges, mussel-beds, low-lying reclaimed farmland and limited areas of saltwater marsh. This is a cross-border IBA, with a minority of the site falling within the Republic of Ireland (IBA 004). The stated area of 21,803 ha refers to the whole site (on both sides of the border) but other data given here (habitats, land-uses, threats and birds) are specific to the UK side. The IBA is internationally important for wintering wildfowl and waders. Branta bernicla are from the Canadian/Greenland breeding population of the hrota subspecies.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Lough Foyle and River Foyle. Downloaded from on 04/02/2023.