Lough Foyle

IBA Criteria

Year of most recent IBA criteria assessment: 2009

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Whooper Swan Cygnus cygnus LC winter 2002-2006 680-3,284 individuals B1i, B3, C2, C6
Brent Goose Branta bernicla LC winter 2002-2006 1,357-3,968 individuals B1i, B2, C3
Greylag Goose Anser anser LC winter 2002-2006 518-1,291 individuals B1i, C3
Eurasian Wigeon Mareca penelope LC winter 2002-2006 2,609-6,559 individuals B3
Red-throated Loon Gavia stellata LC winter 2002-2006 13-147 individuals C6
Eurasian Golden Plover Pluvialis apricaria LC winter 2002-2006 3,320-9,534 individuals C6
Bar-tailed Godwit Limosa lapponica NT winter 2002-2006 630-4,108 individuals B1i, C2, C6
A4iii Species group - waterbirds n/a winter 2002-2006 33,076-38,324 individuals A4iii, C4

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Lough Foyle SPA Special Protection Area (Birds Directive) 588 protected area overlaps with site 350


IUCN Habitat Habitat detail Extent (% of site)
Coastline Tidal rivers & enclosed tidal waters, Sand dunes & beaches, Mud flats & sand flats -
Grassland Mesophile grasslands -
Wetlands (inland) Rivers and streams -
Sea Sea inlets and coastal features -
Artificial/Terrestrial Highly improved re-seeded landscapes -
Marine Neritic -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
not utilised -
For further information about the land use classification please click here.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Lough Foyle. Downloaded from on 28/03/2023.